Fix repl load not displaying errors, return loc info to trace

[jmcardon]

Closes #261

After this PR, the following happens on error

➜  pact-core git:(jose/fix-load-error-repl) cabal run pact -- scratch/261_repro.repl -t
scratch/261_repro.repl:1:1: Cannot find module:  foo
 1 | (foo)
   |  ^^^


Load failed

Moreover: Pact trace locations were not being included in -t output. This PR fixes that, by adding the location parameter to replPrintLn, but the implementor is left with the flexibility of how to actually interpret the info. This way, the repl interactive output is left untouched, but the trace output using execScript works as intended.

Before this PR:

➜  pact-core git:(jose/fix-load-error-repl) ✗ cabal run pact -- scratch/tc-fail-repro.repl -t
3
7
"Loading scratch.repl..."
"hello"
24
()
Load successful

After this PR

➜  pact-core git:(jose/fix-load-error-repl) ✗ cabal run pact -- scratch/tc-fail-repro.repl -t
scratch/tc-fail-repro.repl:0:0-0:7: 3
scratch/tc-fail-repro.repl:1:0-1:7: 7
scratch/tc-fail-repro.repl:2:0-2:21: "Loading scratch.repl..."
scratch/scratch.repl:0:0-0:7: "hello"
scratch/scratch.repl:1:0-1:9: 24
scratch/tc-fail-repro.repl:2:0-2:21: ()
Load successful

PR checklist:

• Test coverage for the proposed changes

• N/A, we don't actually have tests for the stability of this sort of thing.

• PR description contains example output from repl interaction or a snippet from unit test output
• (If Relevant) Documentation has been (manually) updated at https://docs.kadena.io/pact

Additionally, please justify why you should or should not do the following:

• Benchmark regressions
• Confirm replay/back compat (Ignore until core release)
• (For Kadena engineers) Run integration-tests against a Chainweb built with this version of Pact (Ignore until core release)