Kettle QoL (#19443)

* Robotics QoL

* Add note pointing chemists to the drain in morgue

* Add senior role spawns

* Add senior roles to kettle map prototype

Resources/Prototypes/Maps/kettle.yml

@@ -30,14 +30,18 @@
             HeadOfPersonnel: [ 1, 1 ]
             ChiefEngineer: [ 1, 1 ]
             StationEngineer: [ 4, 6 ]
+            SeniorEngineer: [ 1, 1 ]
             ChiefMedicalOfficer: [ 1, 1 ]
             MedicalDoctor: [ 3, 5 ]
+            SeniorPhysician: [ 1, 1 ]
             Chemist: [ 2, 3 ]
             ResearchDirector: [ 1, 1 ]
             Scientist: [ 4, 6 ]
+            SeniorResearcher: [ 1, 1 ]
             ResearchAssistant: [ 8, 8 ]
             HeadOfSecurity: [ 1, 1 ]
             SecurityOfficer: [ 4, 6 ]
+            SeniorOfficer: [ 1, 1 ]
             Chaplain: [ 1, 2 ]
             Warden: [ 1, 1 ]
             Librarian: [ 1, 2 ]