Script to use Trace.FILE functionality with old TRACE32 versions

Old implementation (before 2007 release version):
  load with Trace.LOAD <filename> - view with Trace.List /FILE

Current implementation:
  load with Trace.FILE <filename> - view with Trace.List /FILE

Advantage of current implementation:
  - resolve naming ambiguity (FILE <--> LOAD)
  - full support of two trace streams at the same time

Usage:
  DO trace_file.cmm "<filename>"
  
Effect:
  - if the version of TRACE32 supports Trace.FILE, file is loaded with Trace.FILE
  - if the version of TRACE32 does not support TRACE.FILE, the file is loaded with Trace.LOAD