This also gives easier access to the current guest process structure via the thread structure, just like any kernel does for their internal structures.
This commit introduces two new kernel thread types, `KNceThread` and `Jit32Thread`.
`KNceThread`s behave like the previous kernel thread object by setting up thread state and jumping into guest code.
`KJit32Thread`s need to run guest code on a `JitCore32` object, so they perform the necessary state setup and then they also setup the jit core for executing guest code. A loop was introduced because jit execution might return when halted, either for an SVC or for preemption. In those cases the thread needs to wait to be scheduled before executing again.
The process object has also been updated to be able to create 32bit threads when running 32bit processes.
Additionally NCE's ThreadContext has been removed from DeviceState, since a thread is not an NCE thread only anymore, and IPC code has been changed to retrieve the tls region from the thread object.
CI now performs build checks on pushes to the master branch only.
For pull requests, the dev variant of the app is built and artifacts are uploaded for ease of testing and side-by-side installation. PR builds use autogenerated debug signing keys, resulting in different keys being used for each build on purpose to ensure they cannot be installed over each other, avoiding any possible conflict between two PRs.