Treat source files as text

This forces git to treat all *.cpp files in the T3000 folder as text,
even if they contain strange chinese characters .

Fix for ticket #23 mainfame.cpp showing as binary
Add unit test of modbus_read_one_value()

Since we are refactoring the code, we need unit tests to help ensure
that we do not break the code.  This starts by doing some basic sanity
tests on the code that reads a register from a modbus device.
Merge pull request #24 from JamesBremner/ticket_23

Treat source files as text
Merge pull request #25 from JamesBremner/unit_test

Add unit test of modbus_read_one_value()
Add CM5 To T3000

1.add the new module cm5 to t3000
2.the table of cm5 in t3000.mdb is the register of cm5
Merge pull request #27 from ALEXLCC/master

Add the new CM5 to T3000
Merge pull request #1 from temcocontrols/master

update From Temco