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)

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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)

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

* Base32 encoder is now paragonie/constant_time_encoding

Apply fixes from StyleCI (Spomky-Labs#83)

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