datajslib: completed doc with descriptions of additional libs
datajslib: completed doc with descriptions of additional libs

I added a few lines on the following libraries:
- base64: Encode/Decode base64 strings
- getobjkey: Retrieve the value or a nested property within an array
- hashobject: Compare objects with a hash
- md5: Message-Digest cryptographic hash function
- pagination: Convert pagination parameters
- runtime: Current runtime
- sha1: SHA-1 cryptographic hash function
- uri: Resolve relative links

joshfire/factory-documentation