Merge master in develop

Bump minimal and recommended Android NDK version to 25b

* Fixes libvpx build

* Add --disable-neon-asm for armeabi-v7a

…2669)

The `Application.ActivityLifecycleCallbacks` interface is used to
register a class that can receive callbacks on Activity lifecycle
changes. Add a `PythonJavaClass` implementing the interface and helper
functions to register python callbacks with it. This can be used to
perform actions in the python app when the activity changes lifecycle
states.

Many of the tools run by p4a store intermediate files in the user's home
directory. Passing the HOME environment variable to the build
environment has 2 positive effects:

1. To completely encapsulate the build, HOME can be set to an alternate
   directory than the user's actual home directory. Many tools such as
   p4a have options to override these paths, but that must be done on a
   case by case basis and it would require that p4a pass through these
   options or environment variables.

2. In containerized environments the user may not be registered in the
   accounts database. If the user's home directory can't be found from
   the HOME environment variable or the accounts database, many tools
   will fail. An example of this is python2.7 when run by `ndk-build`.

When the adjust mode is unspecified, Android will not resize the webview
when showing the on screen keyboard to keep the input element on screen.
Explicitly instruct it to use `adjustResize` mode. Possibly this is
because the webview bootstrap uses an `AbsoluteLayout` as the top level
widget. See
https://developer.android.com/guide/topics/manifest/activity-element#wsoft
for details.

Resize webview when keyboard is shown

The "<0.7.0" bound was added in 9f6d6fc
to fix #1994 :

> The `TestGetSystemPythonExecutable.test_virtualenv` and `TestGetSystemPythonExecutable.test_venv` tests started failing all of a sudden. Error was:
>
> ```
> ModuleNotFoundError: No module named \'pytoml\'\n'
> ```
>
> This ca be reproduced in local via:
>
> ```shell
> pytest tests/test_pythonpackage_basic.py::TestGetSystemPythonExecutable::test_virtualenv
> ```

I think this no longer applies,
`$ pytest tests/test_pythonpackage_basic.py::TestGetSystemPythonExecutable`
runs successfully for me, using latest `pep517==0.13.0`.

When a recipe uses a `git+...` url, and has a `version` specified, only do a shallow git clone.
This saves disk space and bandwidth.

Tested with a custom qt5 recipe.
Without this patch, the git clone on disk was 8.5 GB, now it is 5.0 GB.

```
class Qt5Recipe(BootstrapNDKRecipe):
    url = 'git+https://code.qt.io/qt/qt5.git'
    #version = '5.15.2'
    version = '9b43a43ee96198674060c6b9591e515e2d27c28f'
```

recipe.download_file: implement shallow git cloning

* Make CI compile aiohttp again.

References: 
https://stackoverflow.com/a/64755338/20124004,
https://stackoverflow.com/a/64755052/20124004, 
#2518

* version variable and github url

* lost a newline

* added missing line for pep

* Changed URL

WRITE_EXTERNAL_STORAGE maxSdk

#2693)

* add_resources

* add_resource

* Update build.py

* stateless

* multiple kinds

* pep8

* --add_resource

…he correct one. (#2700)

…is "cached". (#2705)

* Gradle: Run the clean task before anything else to make sure nothing is cached.

* Reference the PR for the future

…ng (SDL `2.26.0`) (#2692)

* Testing: SDL with patches for the new TextInput / TextEditing

* Bump to SDL 2.26.0

* Flake8 does not support inline comments for any of the keys.

* Fix flake8 E741 ambiguous variable name

* add_resources

* add_resource

* Update build.py

* stateless

* multiple kinds

* pep8

* --add_resource

* Custom notification

* Update Service.tmpl.java

* Custom Notification

* Custom Notification

* service notification

* customize notification

* share code

* share code

* Update Service.tmpl.java

Depreciated since Python 3.3

secp256k1 Update "--host="

Delete pythonforandroid/recipes/cdecimal directory

…f SDLActivity.keyboardInputType is NULL (#2716)