Issue 123 set foreign fields to manual entry

[RadinMan]

Change Summary

• Changed admin.py foreign key fields to raw_id_fields to accomodate scaling and easy search-ability in the admin site.
• Went through all migration files inside migrations renamed their id and their dependencies so when others add new migrations we don't get duplicates.
• Inside models.py renamed itchGameEmbedID to itchGamePlayableID for easier differentiation between the game developer demo itch id code and the Itch.io embed widget code

Change Form

• The pull request title has an issue number
• The change works by "Smoke testing" or quick testing
• The change has tests
• The change has documentation

Other Information

Related issue

• Resolve Set foreign fields to manual entry #123

[samjjacko]

Looks good, I caught a small issue and fixed it

[RadinMan]

Looks good, I caught a small issue and fixed it

Thank you so much mate.