Upstream species (#6066)

* Step 1 of porting; grabbed most of the files via patches.

* Add species field to the DB

* Appearance patches for slimes.

* Fix the db test.

* Add slime's biocompat.

* slimby

* Fixes, allow specifying if a species is playable or not.

* Update Content.Client/Preferences/UI/HumanoidProfileEditor.xaml.cs

Co-authored-by: Javier Guardia Fernández <DrSmugleaf@users.noreply.github.com>

* Update Content.Client/Preferences/UI/HumanoidProfileEditor.xaml.cs

Co-authored-by: Javier Guardia Fernández <DrSmugleaf@users.noreply.github.com>

* Update Content.Client/Preferences/UI/HumanoidProfileEditor.xaml.cs

Co-authored-by: Javier Guardia Fernández <DrSmugleaf@users.noreply.github.com>

* Address reviews.

* Address reviews.

* make an if-case.

* Fix a goof where species wouldn't get shown in the editor correctly (it'd always default to human)

Co-authored-by: Javier Guardia Fernández <DrSmugleaf@users.noreply.github.com>

Resources/Prototypes/species.yml

@@ -0,0 +1,23 @@
+- type: species
+  id: Human
+  name: Human
+  roundStart: true
+  prototype: MobHuman
+  dollPrototype: MobHumanDummy
+  skinColoration: HumanToned
+
+- type: species
+  id: Dwarf
+  name: Dwarf
+  roundStart: true
+  prototype: MobDwarf
+  dollPrototype: MobDwarfDummy
+  skinColoration: HumanToned
+
+- type: species
+  id: SlimePerson
+  name: Slime Person
+  roundStart: true
+  prototype: MobSlimePerson
+  dollPrototype: MobSlimePersonDummy
+  skinColoration: Hues