Fix issue of case sensitive algorithms (Spomky-Labs#129)

There is an issue where if loading a provisioning URL with the algorithm in uppercase that an exception is thrown even though the algorithm is valid. This one liner fixes the issue by lowercasing the algorithm name before checking and setting.

Revert Spomky-Labs#107 (Spomky-Labs#127)

This PR reverts the changes from Spomky-Labs#107.
It should solve Spomky-Labs#126 / Spomky-Labs#125

Allow both beberlei/assert v2.4 and 3.x (Spomky-Labs#123)

Fix Spomky-Labs#122

Trailing chars (Spomky-Labs#116)

* Auto remove trailing "=" + test
* Doc

Apply fixes from StyleCI (Spomky-Labs#112)

[ci skip] [skip ci]

Implement TOTP T0 (epoch) parameter according to RFC 6238 (Spomky-Lab…

…s#100)

Implement TOTP T0 (epoch) parameter according to RFC 6238

Catch exception during Base32 decoding process (Spomky-Labs#96)

* Catch exception during Base32 decoding process
* Tests added

Paragonie Constant Time Encoding (Spomky-Labs#85)

Base32 Encoder is now paragonie/constant_time_encoding

This fixes Spomky-Labs#80 for the branch 9.0

Apply fixes from StyleCI (Spomky-Labs#82)

[ci skip] [skip ci]

Base32 encoder is now paragonie/constant_time_encoding (Spomky-Labs#87)

* Base32 encoder is now paragonie/constant_time_encoding