v1.1.0 of mc_sdk

A multi-mediation advertising SDK for Flutter, bridging MAX, AdMob, GroMore and TopOn, with banner, MREC, interstitial, rewarded, app-open and native ad formats. Changelog excerpt: - Initial public release of the MCSDK Flutter plugin. - Ad formats: banner, MREC, interstitial, rewarded, app-open and native ads. - Mediation networks: MAX, AdMob, GroMore, TopOn and more. - Smart Cache APIs for interstitial, rewarded and app-open ads. - Privacy controls: user consent, age-restricted user and do-not-sell flags.