for uniform-http

0.0.2.3 added HttpVarParams  
0.0.2.4 change structure to export as Http  
0.0.2.6 add back callHTTP8get  
0.0.2.7 for cabal 8.10.4 may 2021  
0.0.2.8 moved filetypes for html here  

0.1.5 branch for ghc 9.2.5
0.1.5.1