Add support for "side loading" Android APK on Amazon Fire HD 8 tablet

[marca56]

• very cheap now on Amazon for a decent tablet at $60 USD with Prime membership;
• https://www.amazon.com/gp/product/B01J94SWWU/ref=s9_acss_bw_cg_tabcppt_3b1_w?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=merchandised-search-3&pf_rd_r=CBGYR74JKV6XPNH18DVR&pf_rd_t=101&pf_rd_p=113830ff-59b1-4973-8f4f-b77b309eb48b&pf_rd_i=6669703011

[atsakiridis]

Don't think we'll be able to make this so soon @marca56. Pushing it further