Merge pull request #908 in FS/freeswitch from ~PIOTRGREGOR/freeswitch:bugfix/FS-9009-fix-windows-build to master

* commit '6d614ac1':
  FS-9009 [mod_avmd] #fix build on Windows

Windows VC doesn't accept function __attribute__(s)

Merge pull request #900 in FS/freeswitch from feature/FS-9310-native-support-for-flowroute-sms to master

* commit '35b816bb':
  FS-9310 Native support for Flowroute SMS API over HTTP(S)

* commit 'f6192c79':
  FS-9241: follow-up patch to fix a mistake in fetching profile url

* commit '78c2ed05':
  FS-9241 Use tls_public_url instead of tls_url in INVITE Contact when NAT is detected

Merge pull request #904 in FS/freeswitch from ~PIOTRGREGOR/freeswitch:feature/FS-9009-avmd-amplitude-estimation to master

* commit 'a7738745':
  FS-9009 [mod_avmd] Amplitude estimation

Add DESA-2 estimation of signal amplitude

* commit '9988d8d9':
  FS-9278: sending sendonly instead of sendrecv media attribute in SDP when unholding call when Zoiper softphone had responded with inactive

FS-9278: sending sendonly instead of sendrecv media attribute in SDP when unholding call when Zoiper softphone had responded with inactive

FS-9314: [mod_conference]  fix crash when starting conference in mux mode while specifying or defaulting to a layout group that does not exist.  We will now fall back to transcode mode in this case.

FS-9307: [mod_conference] don't close files until after video threads are done to avoid race condition trying to use closed file handle when playing a video file

FS-9305: [mod_conference] return the logo image path from video-logo-img api and handle passing no image path

FS-9303 these checks are no longer needed as the video flag is not sent to file open unless we are in transcode mode, you can record mp4 but it will only contain the audio if in passthru mode.

This reverts commit 7150cede.

Merge pull request #897 in FS/freeswitch from bugfix/FS-9221-fail-to-use-opus-codec-when-video to master

* commit 'bf34d034':
  FS-9221 Add inactive support

FS-9302 [mod_mongo] mongo_find_one and mongo_find_n corrected to return -ERR when connection to database fails.

FS-9301: [mod_sofia] handle race condition on startup of mod_sofia in error conditons causing segfault

* commit '5c9f98b0':
  FS-9297: [mod_sofia] fix multiple crashes from passing invalid null values in sofia.conf

FS-9287 Add channel variable to make spandsp_start_tone_detect easier to use from dialplan / embedded scripts.
The following variables are added:

execute_on_spandsp_tone_detect_<TONE NAME> : executes APP when tone is detected.  For example, if you have a tone
    named "SIT" defined in spandsp.conf.xml, the variable would be "execute_on_spandsp_tone_detect_SIT"

api_on_spandsp_tone_detect_<TONE NAME> : similar to execute_on except that it executes an API.

spandsp_tone_detect_stop_on_tone : default is false.  If true, detector will stop once the first matching tone is detected.