Command Blocks don't work with CommandBook TP command with decimals

CMDBOOK-2245 - Reported by Ikx_1

Command Block works if you use exact numbers on the command, but if it's using some decimals, like 1.5 30 111, it wont work with CommandBook.

Reproduce the CommandBook TP command from the issue in a Minecraft command block, using decimal coordinates such as 1.5 30 111. Trace the command-handling entry point to find where decimal arguments are rejected, then verify that command blocks accept the decimal-coordinate form while exact-number coordinates continue to work.

Written by the indexing model from the issue text.