Merge remote-tracking branch 'origin/master'

fix issue related to in/out Lob types

fix struct par number type with pointer will panic

fix recall stored procedure with same command + add more testing file…

…s to recent issues

fix udt fields network representation

add RegisterDial function and update README.md file

fix reading empty array

fix reading sql.Nullfloat

fix udt_array > 252 as input parameters

fix data race

fix data race