fix: sending the `tracks` to the node

This commit fixed an not harmful issue that would send the entire "tracks" object to the node.

add: `getPlayer` function

This commit adds the missing "getPlayer" function.

fix: destroy function

This commit fixes destroy function which would end up killing all Players.

optimize: PWSL parseFrameHeader

This commit optimizes PWSL by removing unecessary code, as servers must not mask their data.

add: github package

This commit adds fastlink as a GitHub package.