Fix string fields memory leak
Fix string message field memory leak
Enable linenoise history
Add check for unknown field type
Rename msg_power to value_or_zero
Rename ECHO message to DATA
Add tests for ECHO type
Add support for quoted string fields
Add support for escaping quotes
Replace regexs with contains_node? helper
Rename SET and GET commands to NODE
Add get versions of NODER and NODERS
Add better support for empty string messages
Formatting
Add FIELD command
Add set version of FIELD command
Remove unused function from command.h
Remove colon from 'Unknown type' message
Add FIELDR and FIELDRS commands
Split specs into commands and types folders