SwiftNIO 2.5.0

Semver Minor

• Deprecated and replaced ByteBuffer.set(buffer:at:) with ByteBuffer.setBuffer(_:at:). (#1078)

Semver Patch

• Enforced that shutting down EventLoopGroups not directly created by you is illegal. (#1055)
• Improved performance of EventLoopFuture.reduce. (#1069, #1070)
• Fixed an issue when subtracting two NIODeadline structures could lead to a crash. (#1074)
• Miscellaneous testing improvements. (#1062, #1067, #1068, #1076, #1077, #1079)