Add Cargo.lock to gitignore.
build
target
/kernel/src/arch/x86_64/interrupt/vector.asm
+/crate/bit-allocator/Cargo.lock
+/crate/memory/Cargo.lock
+/crate/bbl/Cargo.lock
+/crate/sync/Cargo.lock
+/crate/process/Cargo.lock
\ No newline at end of file
