perf: lookup method only once

[kirillzyusko]

📜 Description

In #681 we started to use reflection for detection the amount of params. But reflection is a slow mechanism, so in this PR I'm optimizing lookup stage by calculating a correct method only one time.

💡 Motivation and Context

Lookup can be up to 10-100 times slower comparing to the direct function call. If we call this method too frequently, we can encounter a bottleneck. To make this code faster I decided to cache the method (thus we do a lookup only one time).

This approach should almost neglect performance impact for a lookup stage. The call stage (method invocation) still will add an overhead, but it should have a small impact.

📢 Changelog

Android

• cache method (make it lazy calculated);
• move constants to companion object.

🤔 How Has This Been Tested?

Tested on CI.

📝 Checklist

• CI successfully passed
• I added new mocks and corresponding unit-tests if library API was changed

[github-actions]

📊 Package size report

Current size	Target Size	Difference
159580 bytes	159441 bytes	139 bytes 📈

[gronxb]

@kirillzyusko

https://github.com/kirillzyusko/react-native-keyboard-controller/pull/681/files#diff-e4529d4a070066ef895b72de7f05df1df3940a0c4fed960bcf0d27d9a7114651L146-R147

https://github.com/kirillzyusko/react-native-keyboard-controller/pull/681/files#diff-e4529d4a070066ef895b72de7f05df1df3940a0c4fed960bcf0d27d9a7114651L151-R154

Thank you for the refactoring! I noticed a small oversight. In that code, the second argument in the eventDispatcher?.let scope should be it instead of eventDispatcher for it to be correct.