…PaystackHQ#146)

- Added a method that provides a loading call back when the SDK is processing
	- Added implementation for when loading callback should be triggered.
	- Added sample in the sample activity
	- updated gradle file to use Maven.

* Update Android Gradle Plugin to 7.1.3
 - Older versions don't work on ARM computers

* Add close button to 3DS popup

* Update dependencies to fix Jacoco reports

* Correct version name

* Update Android Gradle Plugin to 7.1.3
 - Older versions don't work on ARM computers

* Add close button to 3DS popup

* Update dependencies to fix Jacoco reports

* Correct version name

* Autoclose 3DS window when complete

* TEMP: WEB MESSAGE EXPLORATION

* Merge master into update-api-endpoints

* Fix TransactionManagerTest.kt

* Move pusher library version to ext

* Change `NO_TRANSACTION`  name to `EMPTY_TRANSACTION`

…HQ#150)

* Fix transaction initialisation using access code.

* Call notifyAll on singleton instance object in AuthActivity

* Add tests for initiateTransaction

* Add optional charge parameters to initialize request (PaystackHQ#151)

…ng with server (PaystackHQ#154)

* Call `showLoading()` on
`TransactionCallback` when starting communicating with server

* Bump version to 3.3.1 (23)

* Add `showLoading()`  to `TransactionCallback` docs

* Update README.md

Co-authored-by: nathan-paystack <82086670+nathanstasin@users.noreply.github.com>

---------

Co-authored-by: nathan-paystack <82086670+nathanstasin@users.noreply.github.com>

…sts (PaystackHQ#157)

* Swap Moshi for GSON to address Type erasure problems in network requests

* Add moshi converter factory dependency

* Pass transaction reference and ID to callbacks for exception reporting