Draft: New test macros and code cleanup

[TheAssembler1]

Checklist:

• New and existing unit tests pass locally with my changes

Done Checklist:

• Capitalize first letter of first word in logs
• Remove newline from PGOTO_ERROR calls
• Replace PGOTO_ERROR(-1, str) with PGOTO_ERROR(FAIL, str)
• Remove unneccesary calls to fflush
• Replace goto with PDC macros PGOTO_DONE and PGOTO_ERROR
• Removed unnecessary comments with unused code
• Remove TANG_DEBUG macro and usage
• Removed pritnln and stderr_println and usages. replaced with LOG_ERROR, LOG_INFO
• Use new TASSERT macros in tests