Slime refusing to eat any material for mutation

[MonkestationIssueBot]

Reporting client info: Client Information:
BYOND:515.1635
Key:noiceboi

Round ID:

4468

Testmerges:

• Adds better trait for no stamina stun, adds it to various things that need it.
• Ports conversion blood brothers from /tg/
• Adds a rare random engine variant -- The BYOS (build your own supermatter)
• Rattus [real] (no fake)
• Funny
• [DRAFT] Slime Rancher? In my space station????
• Adds Cortical borers, in their full worm glory
• Makes some nerfs to hardlight spears

Reproduction:

The new xenobio slimes don't attempt to eat metal, plasma, or medical gauze when placed next to them for their respective slime mutation so its impossible to obtain other slime.