Add --capture-orientation

Deprecate --lock-video-orientation in favor of a more general option
--capture-orientation, which supports all possible orientations
(0, 90, 180, 270, flip0, flip90, flip180, flip270), and a "locked" flag
via a '@' prefix.

All the old "locked video orientations" are supported:
 - --lock-video-orientation      ->  --capture-orientation=@
 - --lock-video-orientation=0    ->  --capture-orientation=@0
 - --lock-video-orientation=90   ->  --capture-orientation=@90
 - --lock-video-orientation=180  ->  --capture-orientation=@180
 - --lock-video-orientation=270  ->  --capture-orientation=@270

In addition, --capture-orientation can rotate/flip the display without
locking, so that it follows the physical device rotation.

For example:

    scrcpy --capture-orientation=flip90

always flips and rotates the capture by 90° clockwise.

The arguments are consistent with --orientation (which provides a
separate client-side orientation).

app/data/bash-completion/scrcpy

@@ -17,6 +17,7 @@ _scrcpy() {
         --camera-fps=
         --camera-high-speed
         --camera-size=
+        --capture-orientation=
         --crop=
         -d --select-usb
         --disable-screensaver
@@ -37,8 +38,6 @@ _scrcpy() {
         --list-cameras
         --list-displays
         --list-encoders
-        --lock-video-orientation
-        --lock-video-orientation=
         -m --max-size=
         -M
         --max-fps=

app/data/zsh-completion/_scrcpy

@@ -24,6 +24,7 @@ arguments=(
     '--camera-facing=[Select the device camera by its facing direction]:facing:(front back external)'
     '--camera-fps=[Specify the camera capture frame rate]'
     '--camera-size=[Specify an explicit camera capture size]'
+    '--capture-orientation=[Set the capture video orientation]:orientation:(0 90 180 270 flip0 flip90 flip180 flip270 #0 #90 #180 #270 #flip0 #flip90 #flip180 #flip270)'
     '--crop=[\[width\:height\:x\:y\] Crop the device screen on the server]'
     {-d,--select-usb}'[Use USB device]'
     '--disable-screensaver[Disable screensaver while scrcpy is running]'
@@ -44,7 +45,6 @@ arguments=(
     '--list-cameras[List cameras available on the device]'
     '--list-displays[List displays available on the device]'
     '--list-encoders[List video and audio encoders available on the device]'
-    '--lock-video-orientation=[Lock video orientation]:orientation:(unlocked initial 0 90 180 270)'
     {-m,--max-size=}'[Limit both the width and height of the video to value]'
     '-M[Use UHID/AOA mouse (same as --mouse=uhid or --mouse=aoa, depending on OTG mode)]'
     '--max-fps=[Limit the frame rate of screen capture]'