**Is your feature request related to a problem? Please describe.** Get irradiance via Solcast API https://solcast.com/solar-data-api/api/ **Describe the solution you'd like** Use iotools to get irradiance data from Solcast **Describe alternatives you've considered** Solcast already has an API toolkit. Is irons redundant? **Additional context** * https://docs.solcast.com.au/#introduction * https://solcast.com/solar-data-api/api-toolkit/ * icymi @AdamRJensen