Add CMake module file that can be used to link SQLiteCpp in other projects using find_package().

Conflicts:
	.gitignore
Fixed unit test warnings under Linux GCC/Clang
Fix #19 default options to OFF, easier to handle for newcommers
Fixed #20 MSVC still does not have "noexcept" keyword
Merge pull request #18 from kartikkumar/cmakeFindModule

CMake module to easily link SQLiteCpp in other CMake projects