* Add shims for PHPUnit
* Fix PHPUnit error: undefined method returnValue()
1) CurlTest\PHPCurlClassTest::testMock
Error: Call to undefined method CurlTest\PHPCurlClassTest::returnValue()
* Fix PHPUnit risky test by restoring error handler before exception thrown
There was 1 risky test:
1) CurlTest\PHPCurlClassTest::testRequiredOptionCurlOptReturnTransferEmitsWarningPHPUnit10Plus
Test code or tested code did not remove its own error handlers
* Fix psalm errors
* Add attributes for version constraint
* Temporarily pin psalm to fix ci
* Run ci static analysis checks using scripts
* Clean up
* Move phpunit run to dedicated script
* Use run.sh and remove ci.sh
* Rename test scripts to be prefixed with "run_"
* Move static analysis runs to test script
* Clean up
Zach Borboa