feat: add ability to dump extism kernel memory and generate coredumps, cleanup kernel memory layout

[zshipko]

Fixes #537

• Requires wasmtime 14.0.0 or greater for coredump serialization
• Adds EXTISM_COREDUMP environment variable to write wasmtime coredump to a file when an error occurs
  • This will create a coredump from the main wasm module, which means it doesn't give us too much insight into the kernel
• Adds EXTISM_MEMDUMP environment variable to write extism linear memory to a file when an error occurs
  • This gives us access to the kernel memory
• Adds some missing profiling options
• Converts timeouts to a Trap instead of a plain error, this helps us get better information about where the timeout occured
• Some small improvements to error handling after a plugin call
• Adds a test for coredump and memdump generation
• Adds the ability to configure debug options using PluginBuilder
• Fixes memory layout and a wasted page of memory in the kernel, found while debugging a memory dump

[bhelx]

This is excellent !