fork: implement promote, sync diff, exclude/include, and merge with excludes

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: I2d10e3f970784e84192cbca10caffe296a6a6964

src/cli.rs

@@ -606,4 +606,18 @@ pub enum ForkSubcommand {
     /// Project identifiers to promote
     projects: Vec<String>,
   },
+
+  /// Exclude parent projects from the merged export
+  Exclude {
+    /// Project slugs to exclude from the parent
+    #[clap(required = true)]
+    projects: Vec<String>,
+  },
+
+  /// Re-include previously excluded parent projects
+  Include {
+    /// Project slugs to stop excluding from the parent
+    #[clap(required = true)]
+    projects: Vec<String>,
+  },
 }