organizing samples

samples/contract1.c

@@ -1,10 +0,0 @@
-int ops = 0;
-
-void log(int block_ops) {
-    ops += block_ops;
-}
-
-int call(int x) {
-  log(5);
-  return 2 * x;
-}

samples/contract2.rs

@@ -1,18 +0,0 @@
-#![feature(link_args)]
-#![feature(drop_types_in_const)]
-#![no_main]
-
-#[link_args = "-s WASM=1 -s NO_EXIT_RUNTIME=1 -s NO_FILESYSTEM=1"]
-extern {}
-
-static mut DATA: Option<Vec<u8>> = None;
-
-#[no_mangle]
-pub fn call() {
-    let mut vec = Vec::new();
-    unsafe { if let Some(ref v) = DATA { vec.extend(v); }; }
-    vec.push(1u8);
-    unsafe {
-        DATA = Some(vec);
-    }
-}