Reimplemented launching procedure (#11).

[johannesbulin]

Updated launching mechanism (see #11)

• Added environment handler and environment pipeline classes.
• Added Application base class.
• Arch classes now have methods instead of class methods. Will now update Job objects and may create additional EnvHandler objects.
• Reworked Launcher classes.
• Removed Benchmark classes and tests as these are broken due to the extensive changes and will be reimplemented later.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 86.01190% with 47 lines in your changes missing coverage. Please review.

Project coverage is 75.68%. Comparing base (c0b6ccb) to head (c5775ce).

Files with missing lines	Patch %	Lines
ifsbench/launcher/bashlauncher.py	20.68%	23 Missing ⚠️
ifsbench/arch.py	86.36%	6 Missing ⚠️
ifsbench/launcher/launcher.py	72.72%	6 Missing ⚠️
ifsbench/application.py	88.57%	4 Missing ⚠️
ifsbench/launcher/srunlauncher.py	90.00%	4 Missing ⚠️
ifsbench/env.py	95.83%	3 Missing ⚠️
ifsbench/job.py	98.11%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #12      +/-   ##
==========================================
- Coverage   78.15%   75.68%   -2.47%     
==========================================
  Files          22       27       +5     
  Lines        1927     1822     -105     
==========================================
- Hits         1506     1379     -127     
- Misses        421      443      +22     

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