Adding encryption configuration properties for stock quote

[sigfrido45]

First encryptorType field, in stock-quote-spring we have 4 types of encryptors:

1. springSecurityBytesEncryptor -> using Spring Security bytes encryptor method
2. noneEncryptor -> Not using encryption
3. aesGsmEncryptor -> Galois Counter mode encryptor
4. springSecurityTextEncryptor -> using Spring Security text encryptor method

saltBytes property, which is generated by KeyGenerators.string().generateKey(), it allows to work with multiple replicas of stock-quote which can decrypt and encrypt simulteanosly

Finally encryptionPassword property used for encryption and decryption.

[jwalcorn]

Addressed in v1.0.0 of the operator