`MCField::compactdata` iterates over all of the data stored for each field.  If not shared, then there is data for each card where the object had existed.  Due to the way `MCStack::checkid` was constructed, if the card was not found then the check was done against the current card.  This has an unintended effect of keeping all field data around for deleted cards if the owning group is on the current card.

This change ensures that the `cardid` is always checked to be sure it matches the card before checking to see if the group is on the card.  Due to the way the code is constructed in the Field and Button side, the `cardid` will never be 0.

This patch audits java calls that return strings to check using `MCStringIsEmpty`
instead of `null` as `null` return values are being translated to empty strings.

This patch ensures that MCStack::view_render returns immediately if
`ECS_DONTDRAW` is set. This exstended state is set/unset on a stack
when a new stack is opened on mobile causing it to become the stack
which should be rendered to screen. Previously portions of other
open stacks could be rendered over the top stack.

This patch fixes an issue where showAll fullscreen mode was not correctly dirtying
the entire rect that needed to be re-rendered causing the letterbox area to remain
the same as the previous card. The issue was twofold:

- The code paths for dirty in the entire stack were not consistent with many places
calling view_dirty_all and many calling dirtyall
- view_dirty_all was not dirtying the entire visible stack rect

This patch removes `view_dirty_all` by routing `dirtyall` through `dirtyrect` to
`view_dirty_rect`.

This patch ensures that objects are clipped to the visible stack rect
when in fullscreen with the exception of `showAll` mode which should not
clip.

This patch fixes the issue where if the acceleratedRendering was set to true
in a preOpenStack or startup handler on Android the SurfaceHandler callbacks
were never called. By moving the creation and adding of the view to a runnable
this issue no longer occurs.
(imported from commit a66d49a)

This patch fixes an issue where the sprite layer id was being set to the layer
id of the scenery layer below it when an object below the sprite was relayered
causing the scenery layer above to be merged.

Accelerated rendering issues

This patch fixes the android external filter pattern to ensure that it
will only match files from the specified arch and still retains the ability
to include support libraries with `lib` prefix and `<arch>.so` suffix.

This mergExt update includes builds of mergJSON, mergMarkdown and blur
externals armeabi-v7a, arm64-v8a, x86, x86_64, mips and mips64.

…ersion_26

Force targetSdkVersion to API 26

The NDK platform version used to compile the android engine needs
to be 16 at the moment, in order to continue to support older
devices (4.1 upwards)

[[ API 26 ]] Use app platform 16 with target sdk 26

[[ mergExt ]] android archs

This patch ensures that the entire stack is redrawn before hiding the bitmap
view. Previously if toggling acceleratedRendering rapidly it was possible for
the bitmap view to be hidden while the openGL view had not been redrawn.

iOS UIViews do not clip child views to their bounds by default so the
child view is drawn iv it is on screen regardless of whether portions
are outside the bounds of the parent view. This patch sets the clipsToBounds
property of native container layers so that they will clip to the rect
of the group as intended.

[[ Bug 21386 ]] Set clipsToBounds of native container layer

…gbitmap

[[ Bug ]] Redraw the entire stack before hiding bitmap view

…d_minversions

Remove unsupported Android min versions

[Bug 21368] Ensure device can register for and receive remote notifications on Android

[[ Bug 21304 ]] Clear unshared data when compacting stack

[21171] Ensure unicode characters in app label are shown correctly

[[ Player ]] Fix player not playing without setting playrate

…to feature-player-pan-mac

…eo_output

Ensure MClicenseparameters struct is cleared in X_clear_globals
so that it does not contain any dangling pointers when android
apps are resumed.

… folder

[[ Bug 19420 ]] Fix crash on resume in commercial android engine

Do not split up .framework folders between MacOS and Resources/_MacOS…

…eo_output

…to bugfix-20211

…into feature-player-pan-mac

[[ PlayerPanning ]] Add stereo balance & panning properties to mac player

[[ tsNet ]] Update pointer

…p_9.0-24.07.18