Pytcm

Fix
* **execute:** Execute now removes empty options from the list of options ([`56f95fe`](https://github.com/alexisbeaulieu97/pytcm/commit/56f95fe8fb4ab905d90d13433a2f6668d5942cb2))

Fix
* Flag now allows for Ellipsis default value ([`7469058`](https://github.com/alexisbeaulieu97/pytcm/commit/746905802734d5a839b0521735d642f53ceb6e5e))

Fix
* Options parsing ([`026cb04`](https://github.com/alexisbeaulieu97/pytcm/commit/026cb04ba23f0d4e1be023288ac42a6aaa7ee63e))

Fix
* **options:** Added missing inheritance from base option class ([`bd56210`](https://github.com/alexisbeaulieu97/pytcm/commit/bd5621023f5c4a38fea58ce7428d7a04cb7c8828))

Feature
* Added option parsing ([`b614bcb`](https://github.com/alexisbeaulieu97/pytcm/commit/b614bcb86d7033d3e4a4124f3063d892e91ed786))

Documentation
* **CHANGELOG:** Correct changelog formatting ([`55a5824`](https://github.com/alexisbeaulieu97/pytcm/commit/55a58240deaa4919b90f5a0b84e28a5aaef62bea))