WIP commit:

* Fix up project structures
* combine vars and funcs table
* make a place for old code that may be useful to reference
* singleton pattern for sym table

Commentary:
When this change is finally finished I promise to use feature branches
from here on out

src/lib.rs

@@ -15,35 +15,37 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#![feature(derive_default_enum)]
-
-mod append;
+/*mod append;
 mod config;
+ */
 mod eval;
 mod func;
 mod lex;
 mod segment;
-mod stl;
-mod str;
 mod vars;
+/*mod stl;
+mod str;*/
+
+extern crate lazy_static;
 
 pub mod ast {
     pub use crate::eval::eval;
-    pub use crate::func::{
-        func_call, func_declare, Args, ExternalOperation, FTable, Function, Operation,
-    };
     pub use crate::lex::lex;
     pub use crate::segment::{Ctr, Seg, Type};
-    pub use crate::vars::{define, VTable};
+    pub use crate::sym::{
+        SYM_TABLE, SymTable, Symbol,
+        UserFn, ValueType, Args,
+        LIB_EXPORT_ENV, LIB_EXPORT_NO_ENV
+    };
 }
 
-pub mod stdlib {
+/*pub mod stdlib {
     pub use crate::append::get_append;
     pub use crate::stl::get_stdlib;
     pub use crate::str::{get_concat, get_echo};
     pub use crate::vars::get_export;
-}
+}*/
 
-pub mod aux {
+/*pub mod aux {
     pub use crate::config::configure;
-}
+}*/