1.0.0

• Implement Build and Release Pipelines by @ooutama in #2
• Gap between two DateTimePeriod by @ooutama in #3
• Overlap between two periods by @ooutama in #4
• Overlap of multiple periods by @ooutama in #5
• Find overlapping periods of multiple periods by @ooutama in #6
• Overlap of all periods across collections. by @ooutama in #7
• Boundary period that encompasses all periods in the collection by @ooutama in #8
• Subtract two periods by @ooutama in #9
• Subtract multiple periods from a period by @ooutama in #10
• Subtract and gaps of collections by @ooutama in #11
• Intersection between a collection and a period by @ooutama in #12
• Union of collection's periods by @ooutama in #13