New fields in configuration file and libraries version up

[mrandrewsmith]

• Added new environment fields to the surfGen configuration for using custom variables within Stencil templates.
• Updated the SwagGen library, adding the pattern field.
• Updated the Stencil library for easier syntax when removing empty lines and spaces.

Usage of environment:

/// If located at the root, it is accessible in all Stencil files through {{ variable1 }} or {{ variable1 }}
environment:
  variable1: value1
  variable2: value2

templates:
  - type: service
/// If located in the template, it is only accessible in the service Stencil files. 
/// However, if the keys match the root environment, 
/// the value from the root environment will not work. 
/// In this case, {{ variable2 }} in the service template will return `templateValue`.
    environment:
      variable2: templateValue