cargo-update-recipe-crates: force name overrides

cargo-update-recipe-crates: force name overrides

A project can have multiple Cargo.lock (provides
multiple binaries for example) and each one can
depends on differenct version of the same crates.
Even within the same Cargo.lock file, it is possible
to have different version of same crates.

To avoid conflicts, override the name with the version
for all crates checksum

Moreover, when searching for Cargo.lock, we should ignore
specific dir like .git (no use to walk down there) and .pc
(because it can have a Cargo.lock if this file was patched)

Signed-off-by: Frederic Martinsons <frederic.martinsons@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>