[bugfix] define standard functions before loading piclibs
[bugfix] define standard functions before loading piclibs

leavesbnw/picrin,dcurrie/picrin,ktakashi/picrin,leavesbnw/picrin,koba-e964/picrin,omasanori/picrin,ktakashi/picrin,omasanori/picrin,picrin-scheme/picrin,leavesbnw/picrin,dcurrie/picrin,picrin-scheme/picrin,koba-e964/picrin,koba-e964/picrin,ktakashi/picrin