New function `admob.set_max_ad_content_rating()`

Added new function admob.set_max_ad_content_rating()

admob.set_max_ad_content_rating(admob.MAX_AD_CONTENT_RATING_PG)
-- admob.MAX_AD_CONTENT_RATING_G
-- admob.MAX_AD_CONTENT_RATING_PG
-- admob.MAX_AD_CONTENT_RATING_T
-- admob.MAX_AD_CONTENT_RATING_MA

Use `DM_LUA_ERROR ` for error messages

• Use DM_LUA_ERROR for Lua error messages.

Updated to use dmScript::LuaToJson()

Compatible with Defold 1.4.0+

Updated SDKs: Android SDK 21.3.0 and iOS SDK 9.12.0

• Android SDK 21.3.0 (2022‑10‑10)
• iOS SDK 9.12.0 (2022‑10‑24)

Banner cut by navigation bar

• Fix issue when banner cut by navigation bar #20

Fix typos in `script_api`

Fix typo when autocomplete in some cases use admod module name instead of admob

Updated SDKs: Android SDK 20.5.0 and iOS SDK 8.13.0

• Android SDK 20.5.0 (2021‑11‑18)
• iOS SDK 8.13.0 (2021‑11‑17)
• New events for Interstitial and Rewarded videos: admob.EVENT_CLICKED

Smaller mutex scope + use new SDK android methods (Defold 1.2.188)

• Use smaller scope for the callback's mutex to avoid possible ANRs/Crashes
• Use new Defold SDK API (1.2.188) for attaching VM thread and loading java class

Add `AVFoundation` dependency

• Add AVFoundation dependency to be able to build extension using 1.2.189

Truncated banner in landscape orientation on Android

• Fixed issue when top-positioned banners are truncating in landscape mode on displays with rounded corners (Android 9+ devices : Xiaomi Mi 9 SE and some others)

Thanks @alexeyfeskov