crypto: lazy_static removed, light parser for address URI added (#2250)

The `lazy_static` package does not work well in `no-std`: it requires
`spin_no_std` feature, which also will propagate into `std` if enabled.
This is not what we want.

This PR provides simple address uri parser which allows to get rid of
_regex_ which was used to parse the address uri, what in turns allows to
remove lazy_static.

Three regular expressions
(`SS58_REGEX`,`SECRET_PHRASE_REGEX`,`JUNCTION_REGEX`) were replaced with
the parser which unifies all of them.

The new parser does not support Unicode, it is ASCII only.

Related to: #2044

---------

Co-authored-by: Bastian Köcher <git@kchr.de>
Co-authored-by: Koute <koute@users.noreply.github.com>
Co-authored-by: command-bot <>

substrate/primitives/core/src/lib.rs

@@ -55,6 +55,8 @@ pub mod crypto;
 pub mod hexdisplay;
 pub use paste;
 
+#[cfg(any(feature = "full_crypto", feature = "std"))]
+mod address_uri;
 #[cfg(feature = "bandersnatch-experimental")]
 pub mod bandersnatch;
 #[cfg(feature = "bls-experimental")]