support to install specific tool(s)

[shenxianpeng]

closes #27

Here is the usage of the new parameter of --tool or -t:

if user is not specific about which tool to install, clang-tools will keep the same behavior as before to download clang-format and clang-tidy, for example

# download clang-format and clang-tidy by default
clang-tools -i 13 

if user wants to install specific tools using --tool or -t. for example

# download clang-tidy clang-query specifically
clang-tools -i 13 -t clang-tidy clang-query

[sonarqubecloud]

Quality Gate passed

Kudos, no new issues were introduced!

0 New issues
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

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