spla print parameter test and config file improved —

Founded spla print parameter test and config file improved models & stl files for printing
Test Block
Sketchup Print
test stl x
ewalker
test cube
aless
test
adam (ender 3)
TEST
3d-gussner
Test house
charger
test
AnhTheBui
test
ryanleon
test
vzemin
Original Prusa Boombox
Jakub Kočí
MSG Rank for Plaques or Decoration
Tom Anderson (The ReaL NEO)