Independent binary conversion

[BC46]

Please merge https://github.com/ollieraikkonen/Freelancer-hd-edition-install-script/pull/88 first.

This pull request adds the following:

• Custom implementation of the hexadecimal to binary conversion to replace the one from Windows.
• Remove Wine-related warning messages and todos

Closes https://github.com/ollieraikkonen/Freelancer-hd-edition-install-script/issues/73

[BC46]

Superseded by https://github.com/ollieraikkonen/Freelancer-hd-edition-install-script/pull/90