Adds address arbiters to kernel HLE

AddressArbiter: Added documentation comment, fixed whitespace issue.

AddressArbiter: Fixed incorrect comment, reordered if-statement to be more clear.

SVC: Removed trailing whitespace.

Thread: Cleaned up arbitrate address functions.

Thread: Cleaned up ArbitrateAllThreads function.

Shared memory - adds preliminary support for shared memory kernel objects and correct block mapping.

- Also added some safety checks to MapSharedMemory.

- Previously, used a hard-coded shared memory handle of 0x10002000 (as used by libctru homebrew)

GSP: Added name for shared memory.

GSP: Cleaned up assertion message.

SharedMemory: Added optional name field for tracking known objects.

Adds preliminary RomFS archive support

- Required "file" handle to be made local and explicitly opened/closed as needed

Archive: Fixed brace ugliness for neobrain :)

FS: Commented out unused local variables to prevent warnings.

...But keeping them here for future use.

archive_romfs: Removed unused #include.

APT: More cleanups.

APT: Changed SignalType to be type u32.

NCCH: Removed extra qualification ‘Loader::AppLoader_NCCH::’.

FS: Added to CMakeLists.txt

Core: Updated CMakeLists.txt to remove directory_file_system and meta_file_system modules.

Refactor loader code and add preliminary NCCH support

NCCH: Updated LoadExec to use Memory::WriteBlock function to load binary code.

Loader: Added ErrorNotUsed ReturnStatus type to specify when something is not used.

- Various cleanups/refactorings to Loader, ELF, and NCCH modules.
- Added AppLoader interface to ELF and NCCH.
- Updated Qt/GLFW frontends to check AppLoader ResultStatus.

NCCH: Removed extra qualification typos.

Loader: Removed unnecessary #include's.

NCCH: Improved readability of memcmp statements.

NCCH: Added missing space.

Elf: Removed unnecessary usage of unique_ptr.

Loader: Removed unnecessary usage of unique_ptr.

Adds OSX building on Travis-CI

citra_qt: Removed autogenerated files from repo and fixed build issues.

NCCH: Fixed typo in printing NCCH filename.