Project libraries: Migrate to hack dao (#13)

Author: mbryzek

scripts/20200422-145650.sql

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+alter table project_libraries add organization_id text default 'tmp' not null;
+update project_libraries set organization_id = (Select organization_id from projects where projects.id = project_id);
+delete from project_libraries where organization_id = 'tmp';
+alter table project_libraries alter column organization_id drop default;

scripts/20200422-150038.sql

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+alter table project_libraries add updated_at                  timestamptz not null default now();
+alter table project_libraries add hash_code bigint default 0 not null;
+alter table project_libraries alter column hash_code drop default;
+
+select schema_evolution_manager.create_updated_at_trigger('public', 'project_libraries');