Reorganize for better crate modularity

.gitignore

@@ -58,16 +58,10 @@ core
 # will have compiled files and executables
 /target/
 
-# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
-# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
-Cargo.lock
-
 # These are backup files generated by rustfmt
 **/*.rs.bk
 
-
 # Systrace specific things
-
 bin/reverie
 tests/clock-nanosleep
 tests/forkExec
@@ -95,18 +89,5 @@ tests/threads6
 tests/threads7
 tests/write-many
 tests/x64-save-return-address
-examples/counter/src/ffi.rs
-examples/counter/src/consts.rs
-examples/echo/src/ffi.rs
-examples/echo/src/consts.rs
-examples/det/src/ffi.rs
-examples/det/src/consts.rs
-examples/none/src/ffi.rs
-examples/none/src/consts.rs
 src/nr.rs
 syscalls/src/nr.rs
-tools_helper/src/consts.rs
-tools_helper/src/profiling.rs
-tools_helper/src/state.rs
-tools_helper/src/local_state.rs
-preloader/src/consts.rs