Merge the branch serial

[lpatiny]

Try the branch serial and try to refactor the code so that it works.

The goal is to have a menu from the serial monitor.

You may try to get a spectrophotometer in order to play with it and try the code.

We may discuss about some more refactoring of the code but the current idea is to move slowly more and more code from the bioreactor-platformio project to this project (step by step will be easier to debug and improve probably).

[andrescvargasr]

Update: Monitoring and Serial threads work

1. Change lib/hack/SerialUtilities.cpp:
2. Change lib/hack/eeprom.cpp:
3. Install Time.h library.
4. Change lib/hack/params.h:
5. Create: Monitoring.h, Serial.h, and StartThreads.h.
6. Modify: Monitoring.cpp, and StartThreads.h.
7. Create Serial.cpp into src folder.

Pending:

1. Refactor hack folder.
2. Check params.h, hex.h, and SerialUtilities.h files.

Test:

• Upload code and type 'h' into Serial Terminal.

Testing board:

• StandardTransducer V2.0 (Lilypad USB compatible board).

[andrescvargasr]

Update: params, SerialMonitoring, eeprom, toHex (.h and .cpp files) work.

• Change /hack/params.h to /include/params.h and src/params.cpp.
• Change /hack/SerialUtilties files to /include/SerialUtilities.h and src/SerialUtilities.cpp.
• Change /hack/toHex files to /include/toHex.h and src/toHex.cpp.
• Change /hack/eeprom files to /include/eeprom.h and src/eeprom.cpp.

Pending:

• Refactor SerialMonitoring, eeprom, and toHex files.

Test:

• All commands work: Type: h, s, and u into Serial Terminal.

Testing board:

StandardTransducer V2.0 (Lilypad USB compatible board).