Add chip8Archive as a submodule, for testing

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "tests/chip8-test-suite"]
 	path = tests/chip8-test-suite
 	url = https://github.com/Timendus/chip8-test-suite.git
+[submodule "chip8Archive"]
+	path = chip8Archive
+	url = https://github.com/JohnEarnest/chip8Archive.git

src/cpu/tests.rs

@@ -37,7 +37,7 @@ fn setup_environment() -> (CPU, Bus) {
             // Load the ROM file into RAM (dummy binary which contains nothing but `jmp pc+2`)
             Program [0x0200..0x1000] = include_bytes!("tests/roms/jumptest.ch8"),
             // Create a screen
-            Screen  [0x0F00..0x1000] = include_bytes!("../../chip-8/IBM Logo.ch8"),
+            Screen  [0x0F00..0x1000] = include_bytes!("../../tests/chip8Archive/roms/1dcell.ch8"),
         },
     )
 }