Updates to devanagari base and dependent tables

[thisismattmiller]

This is an update from @RandyBarry work on Devanagari based tables.

• Updated _devanagari_base.yml
• Removed devanagari.yml
• Updated dogri_devanagari.yml
• Removed hindi_devanagari_alt.yml (Updated and renamed to hindi.yml)
• Updated nepali_devanagari.yml
• Updated newari_devanagari.yml
• Updated prakrit_devanagari.yml
• Updated rajasthani_devanagari.yml
• Updated sanskrit_devanagari.yml
• Updated index.yml to reflect the changes
• Created bihari_devanagari.yml
• Created braj_devanagari.yml
• Created maithili_devanagari.yml
• Created pahari_devanagari.yml

[scossu]

Just a few non-binding comments, it can go in as it is.

[scossu]

@RandyBarry This effectively maps the space character, which is ignored in the _ignore_base config.

No harm done, it's just redundant and we can let it go for expediency's sake.

To just have an empty map, you can also use map: {}

Or I can improve the code not to require map to be present and to be a dict.

[scossu]

@RandyBarry This is redundant, as it's already included in _devanagari_base.