Fix Python Error By Adding Main Function

Upstream latest updates

NOPs when non-user skipping is enabled

Add instruction index (instIndex()) and unskipped instruction index (unskippedInstIndex()) to STFBranch
    - Instruction index = index of branch when using STFInstReader with
      same non-user skipping mode
    - Unskipped instruction index = index of branch when using
      STFInstReader with no skipping enabled

Upstream bug fixes, update TransactionRecord format

    - Reinitialize it to 0 before reading elements in case this is a
      cached object

    - Fixes bug where re-using a cached TransactionRecord had stale
      metadata

This reverts commit 07f808cdb4bd93394c4655019cd7063fd77e7b97.

The original patch fixed a bug (checking RS1 twice instead of checking
RS1 and RS2), but broke detection of JAL/JR instructions since it added
superfluous X0 src/dest operands. This reverts the patch and fixes the
original RS1/RS2 bug.

    - Each entry has its own type specifier, allows mixing types in the
      same record

    - Allows the trace writer to specify how a metadata field should be
      interpreted/formatted
    - Can be extended in the future for more complicated data types and
      error checking

Upstream latest fixes

Add github workflow to build library

Signed-off-by: Suraj Shirvankar <surajshirvankar@gmail.com>

    - BOOST_MOVE_USE_STANDARD_LIBRARY_MOVE was causing some strange
      compile errors

existing traces
    - It can be renamed once 0x19a gets an official definition

    - Needed to avoid bug in
      https://gitlab.kitware.com/cmake/cmake/-/issues/20194

Fixes #8

fix read & write example in README

    - Automatically imports stfpy when stfpython is invoked

of the header