[FIX] pandas_compat: fix table_from_frames for "normal" dataframe

[PrimozGodec]

Issue

table_from_frames errored when it recieved a dataframe which is not OrangeDataFrame. Look at new test for an example.
fixes #5622

Description of changes

This PR solves two errors:

• do not expect df.orange_attributes for data frame that is not OrangeDataFrame
• make vars_from_df use take into account role parameter for data frame which is not OrangeDataFrame
• make sure indexes of all three data frames are equal and if index is not range index it should be placed in metas

Includes

• Code changes
• Tests
• Documentation

[PrimozGodec]

This PR cannot be merged before #5620

[codecov]

Codecov Report

Merging #5652 (fd9d708) into master (3634e37) will decrease coverage by 0.03%.
The diff coverage is 97.77%.

❗ Current head fd9d708 differs from pull request most recent head 9afaa96. Consider uploading reports for the commit 9afaa96 to get more accurate results

@@            Coverage Diff             @@
##           master    #5652      +/-   ##
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- Coverage   86.07%   86.04%   -0.04%     
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  Files         315      315              
  Lines       66048    65930     -118     
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- Hits        56854    56731     -123     
- Misses       9194     9199       +5