0.1.0

Initial release with basic commands: encrypt, decrypt, and edit:

• encrypt encrypts an existing .env file and writes to the file of your choosing (.env.enc by default)
• decrypt will decrypt a file (.env.enc by default) and print it to stdout so you can load the decrypted values into your environment
• edit will decrypt the encrypted file, allow for editing in your chosen EDITOR, and save the encrypted version back to the original encrypted file path