Merge pull request #1729 in FS/freeswitch from ~ANDYWOLK/freeswitch:FS-11851-reduce-libvpx-and-ffmpeg-compile-time-on-windows to master

* commit 'fe7d5e29':
  FS-11851: [Build-System] Significantly reduce libvpx and ffmpeg compile time on Windows.

Merge pull request #1728 in FS/freeswitch from ~ANDYWOLK/freeswitch:FS-11849-add-mod_av-based-on-ffmpeg-and-openh264-to-msi-package-on-windows to master

* commit 'a1f3b486':
  FS-11849: [Build-System] Add mod_av based on ffmpeg and openh264 to MSI package on Windows.

* commit '23fbd609':
  FS-11847 [mod_loopback] unregister from reloadxml

* commit '90438ffe':
  FS-11846 [mod_kazoo] fix queue cleanup

* commit '15c4647c':
  FS-11796: [mod_http_cache] Fixed file seek in mod_http_cache.c

Merge pull request #1718 in FS/freeswitch from ~INFOMIND/freeswitch:bugfix/FS-11826-mod_conference-channel-variables_join to master

* commit 'b7bce76d':
  FS-11826 [mod_conference] conference_member.c: channel variables (conference_join_) Fixes variables being seen as empty and proper range on conference_join_energy_level

FS-11826 [mod_conference] conference_member.c: channel variables (conference_join_) Fixes variables being seen as empty and proper range on conference_join_energy_level

Added missing http_cache_file_seek() and http_cache_file_seek file interface references.

Merge pull request #1724 in FS/freeswitch from FS-11839-update-libks-to-1.3.0-and-signalwire-client-c-to-1.2.0-on-windows to master

* commit '2bec2352':
  FS-11839: Update libks to 1.3.0 and signalwire-client-c to 1.2.0 on Windows

* commit '9bfa2fc5':
  FS-11838 [mod_kazoo] handle intercept

Merge pull request #1716 in FS/freeswitch from ~LWAHLMEIER/freeswitch:bugfix/FS-11342-hep-and-hep3-has-incorrect-capture_id to master

* commit '2ba80c05':
  FS-11342: fixed hep3 capture_id

* commit '669ea988':
  FS-11825 [mod_sofia] use proper flag in blind auth 403 reply

* commit '7b0d25da':
  FS-11830 memory leak in SWITCH_STANDARD_API(enum_function)

* commit 'fdd2acfb':
  FS-11791 [mod_kazoo] fixes & improvements

* commit '2b2f11d6':
  FS-11790 [mod_loopback] set correct values for Connecting-Legs

* tweak configuration
* customized att_xfer
* json_api with uuid support

Merge pull request #1712 in FS/freeswitch from ~ANTONIO/freeswitch:bugfix/FS-9894-mod_callcenter-timeout-to-call-an to master

* commit '1a4e4e2f':
  FS-9894 [mod_callcenger] fix call timeout if agent contact as leg_timeout to higger value than 60

Merge pull request #1689 in FS/freeswitch from ~RAZVANC/freeswitch:bugfix/FS-11696-fix-format_fields-init to master

* commit '6f15b032':
  FS-11696 [mod_amqp] fix format_fields initialization

* commit '8ca01da5':
  FS-11747 [mod_loopback] add option to not bowout on inner bridge

* commit '47b2be3d':
  FS-11748 [mod_kazoo] better handling of interaction-id

Merge pull request #1706 in FS/freeswitch from ~ANDYWOLK/freeswitch:feature/FS-11759-update-libks-to-1.2.0-and-signalwire-client-c-to-1.1.0-on-windows to master

* commit '1202d6e7':
  FS-11759: [Build-System] Update libks to 1.2.0 and signalwire-client-c to 1.1.0 on Windows

* transfers
* outgoing channels
* loopback

Merge pull request #1698 in FS/freeswitch from ~ANDYWOLK/freeswitch:bugfix/FS-11729-wix-project-fails-to-find-mergemodule-folder-due-to-incorrect-version-in-path-fixed to master

* commit 'a8aced24':
  FS-11729: [Build-System] Fix Visual Studio 2017 15.9 Redist files detection.

* commit '68e3eae8':
  FS-11742 [mod_kazoo] add Core-UUID to Runtime-Info