argument parsers improvements

[geyslan]

1. Explain what the PR does

This is a sequence of the effort already started by #4200. As it was getting huge, the continuation will come after.

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Improvements include reducing the size of the parser logic by using slices instead of maps whenever possible. This allows for direct access to values via index, and when direct access isn't feasible, iterating through slices is generally more efficient than fetching values from a map.

Return string only instead of the Argument type since it's the only value used.

This PR reduces the size of the final binary by ~56KB.

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62541c2 chore: add todo comment
5d200ec feat: parse dirfd for special case AT_FDCWD
ced30bc perf: chore: add flag to ParseSocketDomainArgument
ecb756c perf: chore: improve ParseSocketcallCall
c36ce9c perf: chore: add flags ParsePtraceRequestArgument
1a9dea4 perf: chore: add missing flags to ParseBPFCmd
5358fcd perf: chore: add missing flags to ParsePrctlOption
e076a4a perf: chore: add missing flags to ParseCapability
397600d feat: perf: fix: AT flags parsing
8313914 perf: fix: improve ParseAccessMode
d70102e perf: fix: improve ParseOpenFlagArgument
1307fb5 perf: improve ParseCloneFlags
4f7adae chore: use system values from C includes
6182f4d chore: interface is used internally

5d200ec feat: parse dirfd for special case AT_FDCWD

syscalls with dirfd arg now parse for special case AT_FDCWD when
ParseArgumentsFDs is true.

ced30bc perf: chore: add flag to ParseSocketDomainArgument

Add missing flag to ParseSocketDomainArgument:
    AF_MCTP

Use slice instead of maps. This allows for direct access to values via
index.

Return string only instead of the Argument type since it's the only
value used.

ecb756c perf: chore: improve ParseSocketcallCall

Use slice instead of maps. This allows for direct access to values via
index.

Return string only instead of the Argument type since it's the only
value used.

c36ce9c perf: chore: add flags ParsePtraceRequestArgument

Add missing flags to ParsePtraceRequestArgument:
    PTRACE_GET_THREAD_AREA, PTRACE_SET_THREAD_AREA, PTRACE_ARCH_PRCTL,
    PTRACE_SYSEMU, PTRACE_SYSEMU_SINGLESTEP, PTRACE_SINGLEBLOCK,
    PTRACE_GET_RSEQ_CONFIGURATION,
    PTRACE_SET_SYSCALL_USER_DISPATCH_CONFIG and
    PTRACE_GET_SYSCALL_USER_DISPATCH_CONFIG.

Iterate slice instead of fetching a map.

Return string only instead of the Argument type since it's the only
value used.

1a9dea4 perf: chore: add missing flags to ParseBPFCmd

Add missing flags to ParseBPFCmd:
    BPF_PROG_BIND_MAP, BPF_TOKEN_CREATE

Use slice instead of maps. This allows for direct access to values via
index.

Return string only instead of the Argument type since it's the only
value used.

5358fcd perf: chore: add missing flags to ParsePrctlOption

Add missing flags to ParsePrctlOption:
    PR_SET_IO_FLUSHER, PR_GET_IO_FLUSHER, PR_SET_SYSCALL_USER_DISPATCH,
    PR_PAC_SET_ENABLED_KEYS, PR_PAC_GET_ENABLED_KEYS, PR_SCHED_CORE,
    PR_SME_SET_VL, PR_SME_GET_VL, PR_SET_MDWE, PR_GET_MDWE,
    PR_SET_MEMORY_MERGE and PR_GET_MEMORY_MERGE.

Iterate slice instead of fetching a map.

Return string only instead of the Argument type since it's the only
value used.

e076a4a perf: chore: add missing flags to ParseCapability

Add missing flags to ParseCapability:
CAP_PERFMON, CAP_BPF and CAP_CHECKPOINT_RESTORE

Use slice instead of maps. This allows for direct access to values via
index.

Return string only instead of the Argument type since it's the only
value used.

397600d feat: perf: fix: AT flags parsing

Introduce ParseFaccessatFlag to parse faccessat flags.
Introduce ParseFchmodatFlag to parse fchmodat flags.

Iterate slice instead of conditional branch.

Return string only instead of the Argument type since it's the only
value used.

Fix ParseExecFlag (now ParseExecveatFlag) to check only related flags.

8313914 perf: fix: improve ParseAccessMode

Iterate slice instead of conditional branch.

Return string only instead of the Argument type since it's the only
value used.

Fix logic, since it wasn't printing F_OK flag alone.

d70102e perf: fix: improve ParseOpenFlagArgument

When possible iterates slice instead of conditional branch.
Return string only instead of the Argument type since it's the only
value used.

Fix logic, since it wasn't printing O_RDONLY flag alone.

1307fb5 perf: improve ParseCloneFlags

Iterate slice instead of conditional branch.

Return string only instead of the Argument type since it's the only
value used.

| BenchmarkParseCloneFlags-32 | Before   | After  |
|-----------------------------|----------|--------|
| Execution Time (ns/op)      | 1117     | 696.7  |
| Memory Allocated (B/op)     | 1192     | 736    |
| Allocations per Operation   | 27       | 25     |

4f7adae chore: use system values from C includes

Try as much as possible to use values defined in the C system, avoiding
entering incorrect values.

2. Explain how to test it

3. Other comments

[geyslan]

After all refactor done, I pretend to split it in different files. I also have an idea to try to reduce ParseArgs() logic, but gonna play with it only after finishing the whole data parsers.