Optimize implementation to try to eliminate warnings about blocking

[mill1000]

• Parse single sentences at a time
• Publish states separately from sentence reception
• Only publish changed states
• Use enums for keys to reduce the number of string comparisons
• Remove zero-initialization of buffers
• Tokenize the sentence in place
• Reduce buffer sizes
• Preallocate strings when possible and perform in-place edits

Current warnings are

[21:42:22][W][component:214]: Component winix_c545 took a long time for an operation (0.15 s). [21:42:22][W][component:215]: Components should block for at most 20-30ms.

with these changes it's reduced by about half

[22:03:05][W][component:214]: Component winix_c545 took a long time for an operation (0.08 s). [22:03:05][W][component:215]: Components should block for at most 20-30ms.

Close #1