Add force-ge and force-no-ge parameters

[tsalo]

References #310.

Changes proposed in this pull request

• Add mutually exclusive --force-ge and --force-no-ge command line options.
• Make --force-bbr and --force-no-bbr mutually exclusive.

[codecov-commenter]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.02 :tada:

Comparison is base (d854cf3) 62.82% compared to head (79b18c3) 62.85%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #313 +/- ## ========================================== + Coverage 62.82% 62.85% +0.02% ========================================== Files 56 56 Lines 5103 5107 +4 Branches 707 707 ========================================== + Hits 3206 3210 +4 Misses 1650 1650 Partials 247 247 ``` | [Impacted Files](https://app.codecov.io/gh/PennLINC/aslprep/pull/313?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=PennLINC) | Coverage Δ | | |---|---|---| | [aslprep/cli/parser.py](https://app.codecov.io/gh/PennLINC/aslprep/pull/313?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=PennLINC#diff-YXNscHJlcC9jbGkvcGFyc2VyLnB5) | `78.69% <100.00%> (+0.51%)` | :arrow_up: | | [aslprep/config.py](https://app.codecov.io/gh/PennLINC/aslprep/pull/313?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=PennLINC#diff-YXNscHJlcC9jb25maWcucHk=) | `83.27% <100.00%> (+0.06%)` | :arrow_up: | | [aslprep/workflows/base.py](https://app.codecov.io/gh/PennLINC/aslprep/pull/313?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=PennLINC#diff-YXNscHJlcC93b3JrZmxvd3MvYmFzZS5weQ==) | `83.95% <100.00%> (-0.20%)` | :arrow_down: |

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