Guapow

Fixes
- Performance mode not being activated for AMD GPUs from the RX 6XX0 series (tested on kernels >= 5.15)

Improvements
- removed unused code

Features
- watcher service:
- allowing processes to be ignored through the mapping file: **watch.ignore** (must be located in `~/.config/guapow` or `/etc/guapow`)
- it follows the same patterns as the `watch.map` file, but the profile name is not required (as it makes no sense). e.g:

my_app_name
my_app_name*
/bin/my_proc
r:/bin/.+/xpto

- this feature is useful if you have general mappings that cover a lot of processes in `watch.map` (e.g: `/usr/bin/*`), but want to ignore specific ones
- new config property `ignored.cache` to cache all mapped patterns to memory after the first read and skip next I/O calls (default: `false`)

Fixes
- AMD GPU performance mode not working [1](https://github.com/vinifmor/guapow/issues/1)
- (test context -> GPU: Ryzen 7 5700G, Kernel: 5.15.45, O.S: Arch Linux)

Features
- If `cpu.performance` is defined, now the energy policy level is also set to full performance. This feature is only available for certain Intel CPUs (generally for laptop models). More on that [here](https://github.com/vinifmor/guapow#opt_cpu_epl)

Improvements
- Optimizer settings:
- `launcher.mapping.timeout`: now defaults to `30` seconds instead of `15`

Fixes
- test cases relying on inxi installed

Fixes
- Random test failures when comparing environment variables