Fixed bug of regular errors being reported as unexpected cli error despite expected failure

[Luna-Klatzer]

What type of change does this PR perform?

• Bug fix (Non-breaking change which fixes an issue)

Summary

Fixed bugs in the @kipper/cli and @kipper/core packages, where some error-handling edge cases weren't covered and caused issues.

Closes #491

List of Changes

• Unified error reporting behaviour in KipperCompiler.compile(). This means that syntax errors will not be thrown anymore unless the argument abortOnFirstError is specified, but also that syntax errors will be returned through a KipperCompileResult instance that stores them in the errors property. (Same behaviour as with semantic or type errors) This also means that KipperCompileResult.programCtx can now be undefined, if there has been a syntax error, as at that stage of compilation it can not be created.
• Multiple bug fixes to resolve invalidly reported errors as explained in [Bug] Regular errors are reported as "Unexpected CLI Error" despite expected failure #491.
• Deprecated CLI flag --abort-on-first-error. This does not include the compile argument CompileConfig.abortOnFirstError.

Does this PR create new warnings?

No.

Detailed Changelog

Changed

• Moved function executeKipperProgram to Run as a private function.
• Moved class KipperCompileResult to new file compile-result.ts in the same directory.
• Field KipperCompileResult.programCtx can now be also undefined, due to the changed behaviour that now
  a KipperCompileResult is also returned for syntax errors (where it has no value).

Fixed

• CLI error handling bug as described in #491. This includes
  multiple bugs where errors were reported as "Unexpected CLI Error".

Deprecated

• CLI flag --abort-on-first-error in favour of --no-recover. #501.

Linked issues or PRs

• [Bug] Regular errors are reported as "Unexpected CLI Error" despite expected failure #491

[github-actions]

size-limit report 📦

Path	Size	Loading time (3g)	Running time (snapdragon)	Total time
./kipper/web/kipper-standalone.min.js	128.56 KB (0%)	2.6 s (0%)	321 ms (+44.97% 🔺)	2.9 s
./kipper/web/kipper-standalone.js	128.6 KB (0%)	2.6 s (0%)	297 ms (+2.24% 🔺)	2.9 s