Fixed indexing on m:n table, as well as added seeding function

services/db/migrations/004_add_index_for_user_on_project_member.sql

@@ -0,0 +1,10 @@
+-- Write your migrate up statements here
+
+create index member_id_project_member_idx on sctl_project_member (member_id);
+
+---- create above / drop below ----
+
+drop index member_id_project_member_idx;
+
+-- Write your migrate down statements here. If this migration is irreversible
+-- Then delete the separator line above.

services/db/migrations/005_add_index_for_project_on_project_member.sql

@@ -0,0 +1,9 @@
+-- Write your migrate up statements here
+
+create index project_id_project_member_idx on sctl_project_member (project_id);
+
+---- create above / drop below ----
+
+drop index project_id_project_member_idx;
+-- Write your migrate down statements here. If this migration is irreversible
+-- Then delete the separator line above.