Alex Baker authored Feb 15, 2022 and Hubert Chathi committed Feb 25, 2022

Signed-off-by: Alex Baker <alex@beeper.com>

-> Update the deserialization methods (the jni methods create an object instance before deserializing them.

-> remove javaCStringToUtf8

-> Always use javaCStringToUtf8 to convert byte array to String

->fix the NULL and 0 pointer comparisons mixes

- add an internal specific JNI function (javaCStringToUtf8()) to perform the UTF-8 conversion
- the SDK is configured to enable/disable the use of javaCStringToUtf8()

- for 32bits platform target
- when debug flag is not defined

- remove compiler warnings when logs are not enabled
- new getInstanceId() function to refactor code

- Introducing namespace AndroidOlmSdk
- Fix logs (function names mixed up)
- Add new check based on the calling java object instance type (IsInstanceOf())
- Fix return value for getXXXInstanceId() in case of failure. Now 0 is returned.

- Modify constructors for inbound and outbound group sessions
- Add new Ecxception class

- Fix warning compiler

- Simplify JNI function signatures definition (Account & Session)

- review comments header
- refactor utility functions

 - new file olm_utility.cpp to have a stand alone function to initialize/alloc a random buffer
 - new class OlmMessage
 - complete OlmSession API with encryptMessage()
 - comments review
 - OlmAccount unit tests are green
 - new gradle to compile the shared lib according to debug mode

- Add Android Studio project