[10.x] Add isMatch method to Str and Stringable helpers

[localusercamp]

This PR adds isMatch method for both Illuminate\Support\Str and Illuminate\Support\Stringable.

Additionally, I recently had a need to perform a regex pattern match: I just needed to check that my variable contains the complex regex pattern. While I was trying to find a solution, I found a problem. Str does not contain method that accepts complex regex pattern and returns boolean.

First of all Illuminate\Support\Str and Illuminate\Support\Stringable already has methods to perform pattern matching. There are is and match methods:

• is() is good for checking string in more human-readable way, but it not supports complex patterns.

  str('foobar')->is('f*o*'); // true
  str('foobar')->is('/f.*o.*/'); // false / Regex patterns not supported

• match() in the other hand supports complex pattern matching but returns string that has been matched. It forces us to additionally check that result of the method call is not containing an empty string, which is not the same thing as check if a string contains pattern.

  // I.e. Does 'foobar' contain pattern /f.*o.*/ ?
  str('foobar')->match('/f.*o.*/')->isNotEmpty(); // true
  
  // This is why match() followed by isNotEmpty() is not the same thing as checking string for pattern match
  
  // I.e. Does 'foobar' contain pattern /^f.*r(.*)/ ?
  str('foobar')->match('/^f.*r(.*)/')->isNotEmpty(); // false
  // But preg_match for this pair returns
  preg_match('/^f.*r(.*)/', 'foobar') === 1; // true

So I suggest adding an isMatch method that will allow you to check the string for the presence of a pattern in it.
Some examples:

str('foobar')->isMatch('/^f.*r(.*)/'); // true
str('foobar')->isMatch('/f.*o.*/'); // true
str('foobar')->isMatch(['/f.*o.*/', '/barfoo/']); // true / I.e. matches at least one pattern (like match()) 

// Same for Str
Str::isMatch('/^f.*r(.*)/', 'foobar'); // true
Str::isMatch('/f.*o.*/', 'foobar'); // true
Str::isMatch(['/f.*o.*/', '/barfoo/'], 'foobar'); // true

✔️This PR does not contain breaking changes.
✔️This PR only adds new features.

[localusercamp]

If this PR is accepted, then we could discuss isMatchAll method, which is alternative for matchAll method 👀