Fix bash script bug and Add new Language Selection Feature

[wickdynex]

Overview of Changes

1. Add new feature to install.sh: specify the language, use -l zh or -l en to select.
2. Fix the architect selection bugs: now can identify not only aarch64 but also arm64 arch.
3. Fix the empty directory bug: if your specified dir not exist, it will create one.
4. Add readme.txt: describe the usage of script.

Related Issues

Fixed #98

Type of Change

• Bug fix
• New feature
• Documentation update
• Code refactoring

Impact

Fix the install bugs, also add new language seleted feature, and make scripts more readable and usable.

Pretending Test

Use install.sh to install any version on any architect and os, test any couples of flags.

[ccmywish]

@1328032567

Your code is very helpful and meticulous. Thank you! 👍

[wickdynex]

@1328032567

Your code is very helpful and meticulous. Thank you! 👍

Thanks for your praise, I'm very grateful and delighted.
I consider to use getopt func to instead of getopts so that the script can parser long option like this --help. However, the concrete implement of getopt is not always the same on different OS, so I give up. To fix and also implement this file, I referred to the content of classical project build-scripts.
Btw, I'd also like to implement the powershell version, but I'm new in posh, so I'd also like to refer the context from other projects.

[ccmywish]

I already added a simple PowerShell version, very simple, you can modify and improve it as you like. Go for it~

[wickdynex]

I already added a simple PowerShell version, very simple, you can modify and improve it as you like. Go for it~

Gosh! U are so considerate, I'll hurry up. Thank you for your replying.