Begins work on dd

- Prototype code.
- Adds project boilerplate for integration with coreutils framework.

Cargo.lock

@@ -1,3 +1,5 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
 [[package]]
 name = "advapi32-sys"
 version = "0.2.0"
@@ -219,6 +221,7 @@ dependencies = [
  "uu_csplit 0.0.4",
  "uu_cut 0.0.4",
  "uu_date 0.0.4",
+ "uu_dd 0.0.4",
  "uu_df 0.0.4",
  "uu_dircolors 0.0.4",
  "uu_dirname 0.0.4",
@@ -1495,6 +1498,14 @@ dependencies = [
  "uucore_procs 0.0.5",
 ]
 
+[[package]]
+name = "uu_dd"
+version = "0.0.4"
+dependencies = [
+ "uucore 0.0.7",
+ "uucore_procs 0.0.5",
+]
+
 [[package]]
 name = "uu_df"
 version = "0.0.4"