Config improvements, bugfixes and new datatypes

[x86]

I've add some improvements into new config syntax:
- Inner items lookup and query ( value[0] value[1] value[hashkey]
value[!subdata_hashkey] and so on)
- plain digits parsed as uint_t data now ( 1234 means (uint_t)"1234" )

New datatype "complex_key_t" is used to construct keys from C code
without allocating memory from heap, or complex code. Can't be defined
from config file.