implement logger in convert_script

[germa89]

Request

Implement a logger on the converter script.

Implementation

The logger is quite simple. Basic stdout output. No format. Uses the standard logging module.

The logging is made when we append the line to FileTranslator.lines through an overloaded append method in a custom List class.

Use:

If the optional keyword show_log is True in FileTranslator, the resulting converted PyMAPDL is printed to the stdout.

Example:

>>> from ansys.mapdl.core.convert import convert_apdl_block, FileTranslator
>>> apdl_ = """FINISH
... /PREP7
... """
>>>
>>>_ = convert_apdl_block(apdl_strings=apdl_, line_ending='\n', show_log=True)
Converted: '"""Script generated by ansys-mapdl-core version 0.60.dev0"""'
Converted: 'from ansys.mapdl.core import launch_mapdl'
Converted: 'mapdl = launch_mapdl(loglevel="WARNING")'
Converted: 'mapdl.finish()'
Converted: 'mapdl.prep7()'
Converted: 'mapdl.exit()'

Closes #698

[akaszynski]

Let's get the log capture working first.

[germa89]

It should now work.

[akaszynski]

Looks good now. Thanks for the fixes.