Add Python LSF driver

[berland]

Issue
Resolves #6949

Approach
Do the same as in #6887

• PR title captures the intent of the changes, and is fitting for release notes.
• Added appropriate release note label
• Commit history is consistent and clean, in line with the contribution guidelines.
• Make sure tests pass locally (after every commit!)

When applicable

• When there are user facing changes: Updated documentation
• New behavior or changes to existing untested code: Ensured that unit tests are added (See Ground Rules).
• Large PR: Prepare changes in small commits for more convenient review
• Bug fix: Add regression test for the bug
• Bug fix: Create Backport PR to latest release

[codecov-commenter]

Codecov Report

Attention: 23 lines in your changes are missing coverage. Please review.

Comparison is base (55a5e12) 85.95% compared to head (1d527d9) 85.90%.

Files	Patch %	Lines
src/ert/scheduler/lsf_driver.py	81.73%	19 Missing ⚠️
src/ert/scheduler/__init__.py	20.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6960      +/-   ##
==========================================
- Coverage   85.95%   85.90%   -0.05%     
==========================================
  Files         379      380       +1     
  Lines       22570    22678     +108     
  Branches      948      946       -2     
==========================================
+ Hits        19400    19482      +82     
- Misses       3058     3077      +19     
- Partials      112      119       +7     

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[pinkwah]

Hurra!

[berland]

Tested with actual LSF cluster 🟢