Intent of reachability.go ×18

All 4 exact tests in this concept. Every test is marked by where it enters the hierarchy.

go.temporal.io/ 4 tests
- server/ 4 tests
  - service/ 4 tests
    
    matching/ 4 tests
    
    go.temporal.io/server/service/matching/TestGetReachability_WithVisibility_WithDeletedRules Inherited TestGetReachability_WithVisibility_WithDeletedRules
    
    go.temporal.io/server/service/matching/TestGetReachability_WithVisibility_WithRules Inherited TestGetReachability_WithVisibility_WithRules
    
    go.temporal.io/server/service/matching/TestGetReachability_WithVisibility_WithoutRules Inherited reachability.go ×1
    
    go.temporal.io/server/service/matching/TestGetReachability_WithoutVisibility_WithRules Inherited reachability.go ×1