Rewrite rust (#38)

Co-authored-by: kjuulh <contact@kjuulh.io>
Reviewed-on: https://git.front.kjuulh.io/kjuulh/octopush/pulls/38

crates/octopush_core/src/lib.rs

@@ -0,0 +1,7 @@
+pub mod builder;
+pub mod executor;
+pub mod git;
+pub mod schema;
+pub mod selectors;
+mod shell;
+pub mod storage;