Implement `ac:u` and `ac:i` services (Wi-Fi info) + example · rust3ds/ctru-rs@bf82101

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

variant `WPA_TKIP` should have an upper camel case name

variant `WPA2_TKIP` should have an upper camel case name

variant `WPA_AES` should have an upper camel case name

variant `WPA2_AES` should have an upper camel case name

use of `offset` with a `usize` casted to an `isize`

use of `offset` with a `usize` casted to an `isize`

variable does not need to be mutable

this `if` statement can be collapsed

manual implementation of an assign operation

manual implementation of an assign operation

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