FS-10725: [Build-System] Add DownloadPackageTask in order to use in props instead of using legacy util.vbs within projects. Get rid of lib v8 download project in favor of props on windows.

FS-10690: [libblade] Added web request and web response layer ontop of civetweb to handle simplified processing for both inbound REST services as well as outbound client requests.  Added simple layer ontop of that for one-liner oauth2 token establishment.

Merge pull request #1419 in FS/freeswitch from ~ANDYWOLK/freeswitch:feature/FS-10690-integrate-robust-and-convenient to master

* commit '8b0fb152':
  FS-10690: [libks, Build-System] Fix libks solution build on windows. Add libks related stuff to .gitignore

FS-10690: [libks, Build-System] Fix libks solution build on windows. Add libks related stuff to .gitignore

FS-10690: [libblade] fixed some linux build issues that were missed recently for stringbuilder addition

FS-10690: [libblade] fixed up libconfig to treat 1.4.x as legacy for debian 8 system packages, with 1.5.0 expected on windows and newer linux

Merge pull request #1412 in FS/freeswitch from ~ANDYWOLK/freeswitch:bugfix/FS-10541-update-openssl-to-1.1.0f-on-windows to master

* commit 'ea8c3be8':
  FS-10541: [Build-System] Move OpenSSL to props with BaseDir on windows.

Merge pull request #1401 in FS/freeswitch from ~STEFAN_YOHANSSON/freeswitch:fix/change-video-next-call to master

* commit '90dad5af':
  [verto_communicator] Fix to make video devices change without restart.

Merge pull request #1411 in FS/freeswitch from ~ANDYWOLK/freeswitch:feature/FS-10690-integrate-robust-and-convenient to master

* commit '8d0afcd0':
  FS-10690: [libblade, Build-System] Migrated civetweb's duktape_lib and lua_lib windows projects into repository.

FS-10690: [libblade, Build-System] Migrated civetweb's duktape_lib and lua_lib windows projects into repository.

Merge pull request #1410 in FS/freeswitch from ~ANDYWOLK/freeswitch:feature/FS-10690-integrate-robust-and-convenient to master

* commit 'e314dad7':
  FS-10690: [libblade] Add libblade related stuff to gitignore

Merge pull request #1409 in FS/freeswitch from ~ANDYWOLK/freeswitch:feature/FS-10690-integrate-robust-and-convenient to master

Merging requested changes related to basedir for Windows VS projects

* commit '9f12a57c':
  FS-10690: [libblade, Build-System] Do not import BaseDir props if already imported.

FS-10690: [libblade] [libks] Added json wrapper to string builder. Fixed an issue with the "Release" build for x64, currently only Debug x64 and Release x64 build correctly, more will be fixed with other project updates soon.

FS-10690: [libblade] [libks] Cleaned up projects so they build as static libs rather than DLL projects where appropriate.  Set all projects that weren't using the right windows CRT library to use DLL based even when statically compiling.  Cleaned up some project preprocessor definitions and moved around some preprocessor code to make it simpler.  Added ks_sb_t to support an efficient universal string builder. Tested string builder with a temporary REST service exposed by switchblade application.

the FAX machines are entering a proprietary mode.

FS-10690: [libblade] Added basedir.props from existing pending PR from Andrey Volk to support PCRE build requirements for blade on windows, currently only used by newly added PCRE props which are not yet used by FS projects

FS-10690: [libblade] Added PCRE to libblade for REST route matching, fixed windows build environment for PCRE download project

parameters to be forced when the audio being decoded does not contain a DCS
message specifying them.

Merge pull request #1402 in FS/freeswitch from ~ANDYWOLK/freeswitch:feature/FS-10690-integrate-robust-and-convenient to master

* commit '2bead55c':
  FS-10690: [Build-System] Compile libks within libblade.

Fix menu background for lower resolutions.

FS-10690: Removed useless defines from blade.h that are only needed when compiling libcivetweb itself

FS-10690: Fixed some issues in the download projects, added configuration transfer during blade_restmgr startup, and started initial stubs for civetweb callbacks in advance of deeper REST routing support

Merge pull request #1400 in FS/freeswitch from ~ANDYWOLK/freeswitch:feature/FS-10690-integrate-robust-and-convenient to master

Merging in download project stuff for windows

* commit 'e8987b0d':
  FS-10690: [Build-System] Add download projects for civetweb, libconfig, libsodium on windows.

Merge pull request #1399 in FS/freeswitch from ~ANDYWOLK/freeswitch:bugfix/FS-10696-update-7za-to-17.01-on-windows to master

* commit 'def7afde':
  FS-10696: [Build-System] Update 7za to 1701 on windows.