Re-wrote from scratch in Golang

- Re-implemented the project in Golang, and deprecated Python entirely
- Implemented several new, long-requested features
- Refactored cheatsheets into a separate repository

internal/cheatpath/filter.go

@@ -0,0 +1,19 @@
+package cheatpath
+
+import (
+	"fmt"
+)
+
+// Filter filters all cheatpaths that are not named `name`
+func Filter(paths []Cheatpath, name string) ([]Cheatpath, error) {
+
+	// if a path of the given name exists, return it
+	for _, path := range paths {
+		if path.Name == name {
+			return []Cheatpath{path}, nil
+		}
+	}
+
+	// otherwise, return an error
+	return []Cheatpath{}, fmt.Errorf("cheatpath does not exist: %s", name)
+}