added switch_core_codec_encode_video and switch_core_codec_decode video and add separate video implementations
the switch_core_video code depends on libvpx, wraped into the switch_ namespace like switch_apr, need to figure out how to find the correct libvpx lib in autotools

the autoconf portion to detect the correct location of libopenh264

Basic conversion for vpx too.
Borrowing from ldns handling, setup mod_vpx to prompt for the required library when the module is enabled

FS-7502: add simple video media bug implementation, should work with .fsv, be sure to set enable_file_write_buffering=false

Conflicts:
	src/include/switch_types.h

conference 3000 record /tmp/testrecord.fsv
call 9194 try to playback
mp4 should also work with the mp4 file format, will be available soon

FS-7582 #resolve #comment port from 1.6 its probably better to start working on 1.6 for any webrtc or dtls stuff

FS-7541 use switch_time_now for more accurate timestamps and wait for 3 consecutive missing packets to write silence into native recordings

FS-7463: revert commits c2c04632 b3356313 and 6bf74877b5f0.  Future pull requests should be verified that they compile before submitting.

without this change one leg calls inhaled could not be picked because there is no bridge_uuid.

FS-7463 #resolve

* commit 'b3356313':
  conditionally allow intercept of replaced call-id when processing replaces header