[ENH] V1 -> V2 Migration - Flows (module)

[Omswastik-11]

Fixes #1601

added a Create method in FlowAPI for publishing flow but not refactored with old publish . (Needs discussion on this)
Added tests using fake_methods so that we can test without local V2 server . I have tested the FlowsV2 methods (get and exists ) and delete and list were not implemented in V2 server so I skipped them .

[codecov-commenter]

Codecov Report

❌ Patch coverage is 62.19839% with 141 lines in your changes missing coverage. Please review.
✅ Project coverage is 45.92%. Comparing base (99928f8) to head (bdf53f3).

Files with missing lines	Patch %	Lines
openml/_api/resources/flows.py	48.46%	67 Missing ⚠️
openml/_api/resources/tasks.py	21.27%	37 Missing ⚠️
openml/_api/runtime/core.py	68.88%	14 Missing ⚠️
openml/_api/http/client.py	85.50%	10 Missing ⚠️
openml/_api/runtime/fallback.py	0.00%	6 Missing ⚠️
openml/_api/resources/datasets.py	77.77%	2 Missing ⚠️
openml/base.py	66.66%	2 Missing ⚠️
openml/_api/__init__.py	75.00%	1 Missing ⚠️
openml/_api/config.py	96.87%	1 Missing ⚠️
openml/flows/functions.py	90.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1609      +/-   ##
==========================================
- Coverage   52.75%   45.92%   -6.84%     
==========================================
  Files          36       47      +11     
  Lines        4333     4664     +331     
==========================================
- Hits         2286     2142     -144     
- Misses       2047     2522     +475     

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[geetu040]

Nicely done overall.

[Omswastik-11]

Hi @geetu040 !! Can you review the pre-commit failure It was due to merge conflicts more specifically for tasks . Should I change it on my branch ?

[geetu040]

Hi @geetu040 !! Can you review the pre-commit failure It was due to merge conflicts more specifically for tasks . Should I change it on my branch ?

can you try again, sync your branch with mine? It should be fixed now.

[Omswastik-11]

I think that due to conflicts it did not synced properly . I have to revert it manually

[geetu040]

Nice overall, few changes needed. I'll look at the tests later when the implementation is final.