Release 2.5.0 - minor fixes and major deprecations

• Getters / issers methods of classes representing complex PostgreSQL types are deprecated. Magic properties should be used instead: those will be reimplemented as native public readonly ones in the next major release.
• converters\datetime\IntervalConverter::output() could incorrectly format the passed float-typed value.
• $block property of types\Tid class no longer has an int typehint: block number is an unsigned 32-bit integer and may be out of range of PHP's signed int type on 32-bit builds.