String.to_hex now encode any string in hex

[Neylix]

Description

To not allow developer to interact with binaries, we can let them convert any string in hexadecimal format and concatenate hex representation of string.

Fixes #1160

Type of change

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

Unit tests

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules