[darwin] Add CDarwinUtils::GetManufacturer() for getting real manufacturer name (for example on VMware it returns “VMware, Inc.”)
[darwin] SysInfo::GetManufacturerName(): return real manufacturer name instead of hardcoded
[omx] Fix compile warning.

This fixes commit 77778e4e1ef549455574f765ff6252fbb278effa.
Merge pull request #5452 from anaconda/fix-pr5348

[omx] Fix compile warning after PR 5348.
Merge pull request #5356 from Karlson2k/osx_manuf_id_01

[darwin] Add real manufacturer name detection
omxplayer: Reset codec on flush to stop a stale timestamp from being returned
[rbp/omxplayer] When opening a stream don't try to update gui so often
[ffmpeg] Speed up wtv index creation

The index creation is O(N^2) with number of entries (typically thousands).
On a Pi this can take more than 60 seconds to execute for a recording of a few hours.

By replacing with an O(N) loop, this takes virtually zero time
adds GetTvShowSeasons
move AddSeason() public.
adds GetArt function to (video) scraper, allowing art to be fetched given the video identifier.
refresh season art if a new season is found that isn't recorded in the database yet. Fixes #14339
REMOVEME: updated thetvdb.com scraper to support art updates
[omx] Report decoded image name
logging: Add microsecond timer to log messages
videoplayer: adapt lateness detection and dropping to buffering
video player: present correct pts to user for a/v sync (after buffering in renderer)
[hifiberry] Hack: force it to be recognised as IEC958 capable to enable passthrough options
Move the reference-counting of Begin and End calls from DX and GL source files into GUIFontTTF.cpp.
Convert CGUIFontTTFBase::m_vertex to be managed as a std::vector.

Also retired CGUIFontTTFBase::m_vertex_count and
CGUIFontTTFBase::m_vertex_size because these can be derived from vector
member functions.