chore: improved overall module structure

src/inst.rs

+//! CPU instructions implementation for the Sharp LR35902.
+
 use crate::cpu::Cpu;
 
 pub const INSTRUCTIONS: [Instruction; 256] = [

src/lib.rs

@@ -14,7 +14,7 @@ pub mod gb;
 pub mod gen;
 pub mod info;
 pub mod inst;
-pub mod license;
+pub mod licensee;
 pub mod macros;
 pub mod mmu;
 pub mod pad;

src/license.rs → src/licensee.rs

+//! Game Boy licensee vendors information and static enumerations.
+
 use std::fmt::{self, Display, Formatter};
 
 #[cfg(feature = "wasm")]

src/rom.rs

+//! Cartridge (ROM) related functions and structures.
+
 use core::fmt;
 use std::{
     cmp::max,
@@ -10,7 +12,7 @@ use crate::{
     debugln,
     error::Error,
     gb::GameBoyMode,
-    license::Licensee,
+    licensee::Licensee,
     mmu::BusComponent,
     util::read_file,
     warnln,

src/test.rs

@@ -80,7 +80,7 @@ mod tests {
         },
         data::BootRom,
         gb::GameBoyMode,
-        license::Licensee,
+        licensee::Licensee,
         rom::{RamSize, Region, RomSize},
     };
 

src/timer.rs

+//! Timer functions and structures.
+
 use crate::{
     consts::{DIV_ADDR, TAC_ADDR, TIMA_ADDR, TMA_ADDR},
     mmu::BusComponent,

src/util.rs

+//! Assorted utility functions and structures.
+
 use std::{
     cell::RefCell,
     fs::File,