feat: Application manager (#8)

* feat: map text area to kernel memory space, first application_manager
implementation

* feat: start application via application_manager

* feat: terminal, start app by ID

* feat: support CLI args, by applying System V ABI concepts

* refactor: rename terminal to console. Minor cleanup

* docs: README.md

workspace/nova_error/src/lib.rs

@@ -5,11 +5,12 @@ use core::prelude::rust_2024::derive;
 
 #[derive(Debug)]
 pub enum NovaError {
+    General(&'static str),
     Mailbox,
     HeapFull,
     EmptyHeapSegmentNotAllowed,
     Misalignment,
     InvalidGranularity,
-    Paging,
+    Paging(&'static str),
     OutOfMeomory,
 }