Module locale

These macros are used as easy helper functions to load/unload module
locale that's based upon the text_lookup system.  You simple place the
OBS_MODULE_USE_DEFAULT_LOCALE macro once in the module, call
OBS_MODULE_FREE_DEFAULT LOCALE in obs_module_unload, and then
call obs_module_text anywhere in your module where you need to look up
text.

By default, it will look for a locale directory in your module's data
directory, and look for language files within it (INI locale format)

This function is used to simplify the process when using the default
locale handling for modules.  It will automatically search in the plugin
data directory associated with the specific module specified, load the
default locale text (for example english if its default language is
english), and then it will load the set locale on top of the default
locale, which will cause text to use the default locale if the desired
locale text is not found.

Rename it from mac-screen-capture.m to mac-display-capture.m to be a bit
more consistent

Fix infinite loop in v4l2 plugin

Touch up for debug proc

With no device present the capability callbacks would cause an
infinite loop.

It was kind of silly that it was residing within the test-input module.

Fix gl_debug_proc function for unexpected parameters

Cmake fixes

Reverse swap red&blue logic

Found by compiling with gcc 4.8, which shows a warning for use in the
inlined function called in that function.

Closes #155

Some x264 parameters actually use the ':' character for their
parameters, so I feel like space would probably be a bit more ideal.

Also add a fallback conversion via AVFoundation in case the native
format isn't supported

As pointed out by da_coder

Because we're using .ini format, the translation servies spit out files
with .ini extensions, so this makes it so we don't necessarily have to
rename those files from .ini to .txt before merging.

Being in with the other locale files causes a bit of confusion,
especially since the locale files will all be renamed to have .ini
extensions.

Implement Status bar

The status bar now displays:
 - Auto-reconnect information (reconnecting and reconnect success)
 - Dropped frames (as well as percentage of total video frames)
 - Duration of session
 - CPU usage of the program
 - Kbp/s

The OBSBasic class is getting a bit big, so I separated out the
status bar code to its own class derived from QStatusBar.

Add callbacks for total bytes sent and number of dropped frames