Parsearg

+ first working version [example: tests/test_parser.py]

base$ SRC=parser/parser
base$ cd $SRC
bash$ pytest -v -s tests/test_parser.py | less

+ add parser.py
+ add tests/test_parser.py
+ add fixtures [tests/conftest.py]

+ finish test_data_structures.py
+ add parser.py

+ add data_structures.py: Fifo, Tree, &c
+ add utils.py
+ add test harness

+ init repo
+ basic structure