Allow content admin to skip tier enforcement for hierarchy

(from [dd38e63abc27f0be61c9cfecffd715853f5cab25]) [#615] logic for choosing content that is exempt from tier locking https://github.com/vegantech/sims/commit/dd38e63abc27f0be61c9cfecff...

(from [85f66df53fdb4dbac87b372390f3f7d38b81fbc0]) [#615] added specs for tier exemption, all that is left is to add it to the builder https://github.com/vegantech/sims/commit/85f66df53fdb4dbac87b372390...

index this?
explain extended SELECT intervention_definitions.* FROM intervention_definitions INNER JOIN tiers ON tiers.id = intervention_definitions.tier_id INNER JOIN intervention_clusters ON intervention_clusters.id = intervention_definitions.intervention_cluster_id INNER JOIN objective_definitions ON objective_definitions.id = intervention_clusters.objective_definition_id INNER JOIN goal_definitions ON goal_definitions.id = objective_definitions.goal_definition_id INNER JOIN districts ON districts.id = goal_definitions.district_id WHERE (intervention_definitions.intervention_cluster_id = 1) AND ((intervention_definitions.disabled=false and (!districts.lock_tier or tiers.position <= 1)) AND (intervention_definitions.intervention_cluster_id = 1)) ORDER BY disabled, custom, position;

(from [f48a88f4e2f90e1eefb532f744af396a1fda9dab]) [#615] added tier exemption to content builder https://github.com/vegantech/sims/commit/f48a88f4e2f90e1eefb532f744...

[bulk edit]