Major-ish™ armor rebalance, adds basic security armor and removes Kevlar armor (#17825)

* adds basic armor vest & changes sec backpack sprites to tg

* el armor de dode

* abcd

* el fixe

* boner balls

* armor rebalance

* dode

Resources/Textures/Clothing/Back/Backpacks/security.rsi/meta.json

@@ -1,7 +1,7 @@
 {
   "version": 1,
   "license": "CC-BY-SA-3.0",
-  "copyright": "Taken from tgstation at commit https://github.com/tgstation/tgstation/commit/547852588166c8e091b441e4e67169e156bb09c1",
+  "copyright": "Taken from tgstation at commit https://github.com/tgstation/tgstation/commit/6665eec76c98a4f3f89bebcd10b34b47dcc0b8ae",
   "size": {
     "x": 32,
     "y": 32

Resources/Textures/Clothing/OuterClothing/Armor/security_slim.rsi/meta.json

@@ -1,7 +1,7 @@
 {
   "version": 1,
   "license": "CC-BY-SA-3.0",
-  "copyright": "Taken from tgstation at commit https://github.com/tgstation/tgstation/commit/4f6190e2895e09116663ef282d3ce1d8b35c032e",
+  "copyright": "Taken from tgstation at commit https://github.com/tgstation/tgstation/commit/6665eec76c98a4f3f89bebcd10b34b47dcc0b8ae",
   "size": {
     "x": 32,
     "y": 32