Add Buy G$ widget package with Onramper embed, SDK flow wiring, and QA fixtures#98

sirpy with Copilot wants to merge 2 commits into

mainGoodDollar/GoodWidget:mainfrom

copilot/convert-buy-g-to-goodwidgetGoodDollar/GoodWidget:copilot/convert-buy-g-to-goodwidgetCopy head branch name to clipboard