Upgrade Data class

[MorrisNein]

Closes #1136.

Change list:

• [x] Storing features_names in new field
• [x] Storing features_types in new field
• [x] Adding the property categorical_features_map
• [ ] Loading data from .npy format with new classmethod InputData.from_npy(...)
• [ ] Loading data from .arff format with new classmethod InputData.from_arff(...)
• [ ] Implement the new properties filling from suitable formats (pd.DataFrame, .arff file, etc.).
• [ ] Cover the new features by tests.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 90.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 79.70%. Comparing base (a2da840) to head (4c3ab95). Report is 64 commits behind head on master.

Files	Patch %	Lines
fedot/core/data/data.py	90.00%	1 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1181      +/-   ##
==========================================
+ Coverage   79.65%   79.70%   +0.05%     
==========================================
  Files         142      142              
  Lines        9817     9827      +10     
==========================================
+ Hits         7820     7833      +13     
+ Misses       1997     1994       -3     

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