On windows righs are not available by default to create build folders symlinks

[daminetreg]

Description

As reported on discord by @mrexodia, On windows 10 pro x64 :

?? .tipi/
· [err] Dynamic exception type: class std::filesystem::filesystem_error
std::exception::what: create_directory_symlink: A required privilege is not held by the client.: "../41d9c90-basic.b/08fea58", "../41d9c90-basic.b/wasm-cxx17"
· [err] Something went wrong, for help on your issue, we would enjoy getting your report at https://tipi.build/#contact

• Either https://stackoverflow.com/questions/58038683/allow-mklink-for-a-non-admin-user
• Or as git seems to do in it's installation process it's possible to give that specific right to a binary.