Changes to parse-evaluator and PE/GT/TP pipeline components

Changes to parse-evaluator were made in order to use the same code base for both parse-evaluator and grammar-tester. Alternative mode left untouched so far except for output_path and token list sort in tokenization comparison mode that were added in order for repeatability of unit tests;
Few ordinary mode parse-evaluator bugs were fixed along the way;
Parse evaluator separate component were added to pipeline;
Random and sequential parsers previously dwelled in parse-evaluator were added to text-parser pipeline component;
Pipeline integration test library were created;
Number of pipeline integration tests were added;
Number of parse-evaluator command line script tests were added for both ordinary and alternative modes;
Slight modifications of grammar-tester were made.

singnet / language-learning