phpstan-phpunit

• Include rules.neon for phpstan/extension-installer (fbf2ad56c3b13189d29655e226c9b1da47c2fad9)

• Extension installer support (#45), thanks @lookyman!
• Fix detection of unspecific assert*() with direct Assert::assert*() calls (#47), thanks @Majkl578!

• Removed strictRules.neon (everything is in rules.neon now)
• Type-specifying extension for various PHPUnit's assert* methods
• Composer: Replaced some requirements with conflicts - #19, thanks @lookyman!

Support PHPUnit 7.0

Added strict rules for more precise TestCase assert calls (enabled separately by including strictRules.neon) - #5, thanks @mhujer!

• Check that you are not using assertSame() with true as expected value. assertTrue() should be used instead.
• Check that you are not using assertSame() with false as expected value. assertFalse() should be used instead.
• Check that you are not using assertSame() with null as expected value. assertNull() should be used instead.
• Check that you are not using assertSame() with count($variable) as second parameter. assertCount($variable) should be used instead.

Add missing methods that generate mocks - #2, thanks @lcobucci!

Supports new names for MockBuilder and MockObject introduced in PHPUnit 6.5.

Initial release.