citra-qt: Rewrite disassembly view.

GPU framebuffer emulation improvements

Templates shouldn't be marked as inline if they aren't defined in the header.

Also makes the illogical component order more obvious.

Anonymous structs are not standard C++, hence don't use them.

[build] Search for the git binary in the default msysgit install dir

core: Kill off type redefenitions in armdefs.h

The Git for Windows installer doesn't add the Git binaries to the path
by default. (Due to risk of conflicts with built-in windows commands.)
Unless you have configured your system specially this causes the
scm_rev_gen.js script to fail to find Git.  Added more paths to the
script so that it searches in the default msysgit installation
directory, eliminating the need to set the PATH for most environments.

BitField additions and fixes

Being able to store BitField within unions requires BitField to be of standard layout, which in turn is only given if the underlying type is also has standard layout.

Cf. https://github.com/dolphin-emu/dolphin/pull/483

Sometimes it can be beneficial to use this in places where an explicit cast needs to happen otherwise. By using the evaluation method, it's not necessary anymore to explicitly write the underlying type in this case.

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.