refactor: Create SigningDriver and CiDriver (#197)

This also includes a new `login` command. The signing and CI logic is now using the Driver trait system along with a new experimental sigstore signing driver. New static macros have also been created to make implementation management easier for `Command` usage and `Driver` trait implementation calls.

---------

Co-authored-by: xyny <60004820+xynydev@users.noreply.github.com>

process/drivers/opts.rs

@@ -0,0 +1,27 @@
+use clap::ValueEnum;
+
+pub use build::*;
+pub use inspect::*;
+pub use run::*;
+pub use signing::*;
+
+mod build;
+mod inspect;
+mod run;
+mod signing;
+
+#[derive(Debug, Copy, Clone, Default, ValueEnum)]
+pub enum CompressionType {
+    #[default]
+    Gzip,
+    Zstd,
+}
+
+impl std::fmt::Display for CompressionType {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.write_str(match self {
+            Self::Zstd => "zstd",
+            Self::Gzip => "gzip",
+        })
+    }
+}