v1.0.0

Changelog:

• Initial logger release implementing PSR-3 interface.
• Added assert and filter including next matchers:
  • withLevel
  • withMessage
  • withMessageContains
  • withMessageContainsIgnoreCase
  • withMessageStartsWith
  • withMessageMatches
  • withContextEqualTo
  • withContextSameAs
  • withContextContainsEqualTo
  • withContextContainsSameAs
  • withCallback