test: add dynamic component query tests (#387)

# Summary
- Adds tests for queries on dynamic components

Author: makspll

assets/tests/query/dynamic_component_query.lua

@@ -0,0 +1,20 @@
+local entity_a = world.spawn()
+local NewComponent = world.register_new_component("NewComponent")
+
+world.add_default_component(entity_a, NewComponent)
+
+local found_entities = {}
+for i,result in pairs(world.query():component(NewComponent):build()) do
+    table.insert(found_entities, result:entity())
+end
+
+assert(#found_entities == 1, "Expected 1 entities, got " .. #found_entities)
+
+expected_entities = {
+    entity_a
+}
+
+for i, entity in ipairs(found_entities) do
+    assert(entity:index() == expected_entities[i]:index(), "Expected entity " .. expected_entities[i]:index() .. " but got " .. entity:index())
+end
+

assets/tests/query/dynamic_component_query.rhai

@@ -0,0 +1,17 @@
+let entity_a = world.spawn_.call();
+let NewComponent = world.register_new_component.call("NewComponent");
+
+world.add_default_component.call(entity_a, NewComponent);
+
+let found_entities = [];
+for (result, i) in world.query.call().component.call(NewComponent).build.call() {
+    found_entities.push(result.entity.call());
+}
+
+assert(found_entities.len == 1, "Expected 1 entities, got " + found_entities.len);
+
+let expected_entities = [entity_a];
+
+for (entity, i) in found_entities {
+    assert(entity.index.call() == expected_entities[i].index.call(), "Expected entity " + expected_entities[i].index.call() + " but got " + entity.index.call());
+}