[release] v1.4.0 - Support Strict Typing (#68)

### New Features
  - Adds Statsig.typed for strict typing support






>Included In This Release
>- 947f338 Daniel
>   - feat: support Value in typed experiments (#67)
>- adc93f5 Daniel
>   - feat: add check options to typed apis (#66)
>- acea56f Daniel
>   - feat: add strict typing for Feature Gates (#64)
>- 256b11c Daniel
>   - feat: add support for strictly typed Experiments (#63)
>- 6efeaa4 sroyal-statsig
>   - Multiple Improvements for SDK (#62)

Author: daniel-statsig

gradle.properties

@@ -1,3 +1,3 @@
 android.useAndroidX=true
-libraryVersion=1.3.0
-kotlinVersion=1.5.0
+libraryVersion=1.4.0
+kotlinVersion=1.5.0