elf: will start using clap to parse assembler arguments for CLI

I am tired af for some reason

assembler/src/args.rs

@@ -0,0 +1,20 @@
+use clap::{Parser, ValueEnum};
+
+#[derive(Debug, Parser, Default)]
+pub struct Args {
+    /// The output format to assemble to. Currently just ELF or a flat binary.
+    #[arg(value_enum)]
+    output_format: Option<OutputFormat>,
+    /// Whether the relocatable object files should be statically linked into a single executable or library.
+    link: bool,
+}
+
+#[derive(Debug, Clone, Copy, ValueEnum, Default)]
+/// The executable format the output should take.
+pub enum OutputFormat {
+    /// An ELF file.
+    #[default]
+    Elf,
+    /// A flat binary file.
+    Flat,
+}