Add only one migration file for all the changes

...ns/migrations/0010_add_determination_stream_field_form.py

...s/migrations/0010_add_determination_stream_field_forms.py

...pply/determinations/migrations/0011_auto_20200616_1945.py

...pply/determinations/migrations/0012_auto_20200616_2054.py

...pply/determinations/migrations/0013_auto_20200617_0921.py

...pply/determinations/migrations/0015_auto_20200626_1252.py

...pply/determinations/migrations/0016_auto_20200630_1232.py

...pply/determinations/migrations/0017_auto_20200630_1234.py

...s/migrations/0075_add_determination_stream_field_forms.py