Create a shared types repo

[forgetso]

There are types duplicated in provider, procaptcha and datasets.

e.g. procaptcha

export interface CaptchaSolutionResponse {
  captchas: CaptchaResponseCaptcha[];
  status: string;
  partialFee: string;
  solutionApproved: boolean
}

provider

export interface DappUserSolutionResult {
    captchas: CaptchaIdAndProof[]
    partialFee?: string,
    solutionApproved: boolean
}