Refs #10554.  Initialize algorithm LoadSPICEAscii.
Refs #10554. Implemented algorithm.
Refs #10554.  Added a unit test and test file.
Refs #10554.  Completed the unit test.
Refs #10554.  Started to implement doc file.
Refs #10554.  Completed the documentation.
Merge branch 'feature/10554_load_spice_data' into develop