Added autotool boilerplate files
Basic build environment

Basic building files to build dummy ciyu-entry.c and its test.
Added Python integration test

This integration test script is not run by "make check". This is
expected to work only after proper libciyu installation.
Dummy ciyu-entry implementation

Only a single private field ("ciyu") in ciyu-entry and a print
function to test a ciyu-entry with. Also updated the unit test
to try allocate memory for a ciyu-entry.