msdkh265enc: add support for screen content coding extension

Because the valid input formats for screen content coding extension is
a subset of input formats for range extension, user must specify the
profile for screen content coding extension in the caps filter

Example:
gst-launch-1.0 videotestsrc ! video/x-raw,format=NV12 ! msdkh265enc
low-power=1 ! video/x-h265,profile=screen-extended-main ! fakesink

Part-of: <!1389>
29 jobs for master in 1 minute and 2 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Build Docker
passed #3568251
alpine amd64 manifest builder docker

00:00:20

passed #3568250
android docker

00:00:34

passed #3568249
cerbero fedora amd64 docker

00:00:21

passed #3568248
fedora amd64 docker

00:00:37

passed #3568252
gst-indent amd64 docker

00:00:20

 
  Preparation
passed #3568254
gst indent

00:00:24

manual #3568253
manual
manifest
 
  Build
created #3568263
gstreamer
build cerbero cross-android universal
created #3568267
gst-ios-13.2
build cerbero cross-ios universal
created #3568264
gstreamer
build cerbero cross win32
created #3568265
gstreamer
build cerbero cross win64
created #3568262
gstreamer
build cerbero fedora x86_64
created #3568266
gst-macos-10.15
build cerbero macos x86_64
created #3568258
build clang fedora x86_64
created #3568261
1809 windows docker allowed to fail manual
build msys2
created #3568255
build nodebug fedora x86_64
created #3568256
build static fedora x86_64
created #3568257
build static nodebug fedora x86_64
created #3568259
1809 windows docker
build vs2017 amd64
created #3568260
1809 windows docker
build vs2017 x86
 
  Test
created #3568268
gstreamer
check fedora
created #3568269
gstreamer
integration testsuites fedora 1/4
created #3568270
gstreamer
integration testsuites fedora 2/4
created #3568271
gstreamer
integration testsuites fedora 3/4
created #3568272
gstreamer
integration testsuites fedora 4/4
created #3568273
gstreamer
valgrind bad
 
  Integrate
created #3568274
cross-android universal examples
created #3568276
gst-ios-13.2
cross-ios universal examples
created #3568275
documentation