Detailed Block now has solid sides

Make sides of the detailed block solid, If the count of transparent sub-blocks on the side is less than 12.
Default value are calculated on this kind of tables:
00111100
01111110
11111111
11111111
11111111
11111111
01111110
00111100
Count can be changed in config file.

PS. This just implements method isSideSolid() for BlockDetailed class.

PSS. The main reason for writing this in the use of detailed blocks for cooking meals.

PSSS. I've been requested this already earlier, but I had to redesign my repository, and rebase some branches. So I closed previous request and start this from new branch.