Base32 support

[Inder00]

Describe the solution you'd like
Add base32 support programically.
Base32 is used by two-factor-authentication (ex. TOTP) to generating secret tokens.

Shared functions:

• string base32Encode( string value )
• string base32Decode( string value ),
• string encodeString( string "base32", string value )
• string decodeString( string "base32", string value )

[Pirulax]

I think we should add a baseEncode/Decode function instead.
The syntax would look like this:

baseEncode(string value, int radix = 64)

Radix is the base, so 32, 64, 128, etc...

[Nico8340]

This issue can be closed, as #3312 was merged.