Add optional locator strategy

Make it work for Appium: added optional locator strategy for SeWebElement and SeWebElementArray, as CSS selectors and xpath are used by default, and Appium uses different locator strategy

Release 0.2.1

• Use selenium 4

Let's try this in real world.

Merge pull request #4 from VicGrygorchyk/dev

Version 0.1

Another test version

Hope, we fixed some bugs.

Third release

We got some tests at least.

Second aplha release

This second release, it's tested and proved to work, but there is a lot of work to find all bugs and fix them.

First alpha release

Not tested alpha release.