Initialize core library structure and add modules

Added initial source files for error handling and core traits, including MembershipFn and modules for triangular, trapezoidal, and gaussian membership functions. Created empty example and benchmark files, updated .gitignore, and removed outdated documentation. This sets up the foundation for further development of the fuzzy logic library.

Author: JoshuaKento

.gitignore

@@ -1,2 +1,3 @@
 /target
-challenges/
+challenges/
+memos/

benches/evaluate.rs

@@ -0,0 +1,11 @@
+pub enum Error{
+    BadArity,
+}
+
+#[cfg(test)]
+mod tests{
+    #[test]
+    fn printError(){
+        return
+    }
+}

docs/fuzzylogic_requirements_and_2week_plan.md

@@ -0,0 +1,7 @@
+pub trait MembershipFn {
+    fn eval(&self, x: crate::Float) -> crate::Float;
+}
+pub mod triangular;
+pub mod trapezoidal;
+pub mod gaussian;
+