Adds minable salt "ore" (#25324)

* Added salt to ore.yml
Added salt to ores.yml
Added salt walls to asteroid.yml
Added salt to BaseAsteroidDebris' list of ores to generate in asteroids.yml
Added OreSalt to biome_ore_templates.yml
Added salt to guaranteed salvageLoot in salvage_loot.yml
Added salt entry under salvage-magnet-resources in salvage-magnet.ftl
Added WIP sprites for salt.

* Renamed salt's id to SaltOre inside Entities/Objects/Materials/ore.yml
Fixed salt not being grindable due to using an incorrect reagent name
Added salt to ore.rsi/meta.json and rock.rsi/meta.json

* Added chlorine to the list of solutions salt gives when used in the grinder.

* Gave salt ore and salt rock overlay unique sprites.

* Added raw salt to materials/materials.ftl
Updated SaltOre definition in ore.yml to have RawSalt under materialComposition

* Updated saltore definition to give 10 units of tablesalt and 5 units of iodine when ground.

Resources/Textures/Structures/Walls/rock.rsi/meta.json

@@ -151,6 +151,9 @@
         {
             "name": "rock_bananium"
         },
+        {
+            "name": "rock_salt"
+        },
         {
             "name": "rock_sand"
         },