major update to examples

.cargo/config

Cargo.lock

Cargo.toml

README.md

build.rs

examples/assume_assert.rs

examples/cortex_m_test1.rs

examples/cortex_m_test2.rs

examples/cortex_m_test_nightly.rs

examples/f401_minimal.rs

examples/klee_init.rs

examples/paths.rs

examples/rtfm_init.rs_todo

memory.x

openocd.cfg

openocd.gdb