libstrat: fix potential oob deref in WaitableManager (closes #256)

libstrat: improve waitable manager cancelsync semantics

libstrat: update curthreadhandle for libnx 1.5.0

libstratosphere: Use intraprocess event signaling for new waitable management

libstrat: Allow nullptr buffers if 0 size. (closes #255)

fs.mitm: Only create storage interface when needed.

libstrat: delete old ipc templating.

Add boost as submodule

libstrat: mark ServiceObjectHolder functions const

libstrat: remove unused struct in serializer

libstrat: automatically detect+format rawdata structs correctly.

libstratosphere: Fix uninitialized memory bug.

fs.mitm: split out set.mitm

libstratosphere: refactor everything

fs.mitm: Intercept qlaunch sysver request

libstratosphere: Fix receive for multi-static IPC buffers

atmosphere: extract API version management to common folder

fs.mitm: Add domain support (closes #202)

libstratosphere: Fix condvar wrapper primitives

pm: Support for 6.0.0

Add and fix copyright notices for better GPL compliance (thanks @naehrwert and @CTCaer).

stratosphere: Use RAII for locks ...

This renames the Mutex class member functions so that the mutex types
satisfy Lockable.

This makes them usable with standard std::scoped_lock
and std::unique_lock, which lets us use RAII and avoids the need
for a custom RAII wrapper :)

stratosphere: Remove an unneeded constructor ...

domain_objects is already an array of empty std::shared_ptrs (since
std::shared_ptr has a sane default constructor).

fs.mitm: Fix c++ modernization breaking changes

libstratosphere: Cleanup resources when doing OutSession for domains.

Modernize C++ usage (#144) ...

* Stratosphere: Use modern C++ idioms in some places

* algorithms like std::for_each are used instead of raw loops

* Stratosphere: Replace more raw loops with algorithms

* Stratosphere: Add a utility predicate function to test for equality with a reference element

This can be used to rewrite some common raw loops using algorithms instead

* fs.mitm: Use variant

* fs.mitm: Use enum class

* fs.mitm: Turn RomFSSourceInfo::Cleanup into a destructor

This obsoletes the need for a custom deleter in other places

* fs.mitm: Use enum class some more

* fs.mitm: Use unique_ptr

* fs.mitm: Simplify initialization

* Stratosphere: Simplify initialization

* fs.mitm: Use unique_ptr (fix memory leak along the way)

The previous code was using "delete" rather than "delete[]"

* fs.mitm: Use vector::emplace_back rather than push_back

emplace_back constructs elements in-place, hence avoiding a redundant element copy.

* Stratosphere: Replace more raw loops with algorithms

* Stratosphere: Use unique_ptr

* fs.mitm: Replace more raw loops with algorithms

* Stratosphere: Prefer move-construction over copy-construction when moving sink parameters around

Make PM Compile. Note: Currently broken.

fs.mitm: WIP LayeredFS impl (NOTE: UNUSABLE ATM) ...

Also greatly refactors libstratosphere, and does a lot of other things.
There is a lot of code in this one.

libstratosphere/fs.mitm: Push WIP support for Domains. Not yet fully working.

fs.mitm: Add HANS-style redirection for System Data Archives.