[col] Add color methods

src/main.rs

@@ -3,12 +3,14 @@ use crate::emu::iomem::MemoryMappedIO;
 use crate::emu::mem::RamMemory;
 use crate::emu::mmu::{Memory, MappedMemory};
 use crate::misc::emulator_error::EmulatorError;
+use crate::misc::result::EmulatorResult;
 
 mod emu;
 mod args;
 mod misc;
+mod graphics;
 
-fn main() ->Result<(),EmulatorError> {
+fn main() -> EmulatorResult<()> {
     SimpleLogger::new().env().init().unwrap();
 
     let mmio = MemoryMappedIO::new();
@@ -17,5 +19,6 @@ fn main() ->Result<(),EmulatorError> {
     for i in 0..10 {
         log::info!("Memory at {} is {}",i,mmu.try_get_byte(i)?);
     }
+
     Ok(())
 }