[C-Api] Expose Memory Options to the C-Api so platforms like dotnet can limit cpu/memory

#### Feature

Expose `static_memory_guard_size`, `dynamic_memory_guard_size`, and `ResourceLimiter` to the C-Api so platforms like dotnet can limit cpu/memory

#### Benefit

Wasmtime dotnet (for example) using the C-Api won't be able to limit the total memory during runtime. Use case: limiting memory to a certain amount for platforms that have limited memory (like 256MB).