multimedia/vlc: update to 3.0.16

Changes between 3.0.15 and 3.0.16:

Video Output:

• Fix a D3D11 crash on Windows 8/8.1

Access:

• Fix RTSP server timeout handling

Interfaces:

• macOS: Add touchbar support

Misc

• Multiple settings improvements

Changes between 3.0.14 and 3.0.15:

Core:

• Add Opus & Alac wave format mappings

Access:

• Fix opening DVD folders with non-ascii characters

Demux:

• Fix asf regression with broadcast streams
• MP4: Fix audio drop on seek

Video Output:

• Fix seek & volume sliders overlapping with subtitles
• Fix delays when seeking with D3D11

Text renderer:

• Improve freetype fonts outlining

Misc:

• Fix GnuTLS support for Windows XP