feat(interface): php_impl_interface macro

[kakserpom]

Implements #590 and #308

[coveralls]

Pull Request Test Coverage Report for Build 20481966552

Details

• 16 of 79 (20.25%) changed or added relevant lines in 7 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage decreased (-0.3%) to 36.065%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/class.rs	0	2	0.0%
src/builders/module.rs	1	4	25.0%
src/builders/class.rs	3	7	42.86%
crates/macros/src/lib.rs	0	8	0.0%
crates/macros/src/interface.rs	5	16	31.25%
crates/macros/src/impl_interface.rs	0	16	0.0%
crates/macros/src/function.rs	7	26	26.92%

Files with Coverage Reduction	New Missed Lines	%
src/builders/class.rs	1	58.62%

Totals
Change from base Build 20461728076:	-0.3%
Covered Lines:	1809
Relevant Lines:	5016

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💛 - Coveralls