MINIFICPP-1533 Update list of dependencies in README file.
MINIFICPP-1533 Update list of dependencies in README file.

Closes #1039

Signed-off-by: Marton Szasz <5e37528a44f6577542b32ebfad716b90b77491f5@gmail.com>

dtrodrigues/nifi-minifi-cpp,dtrodrigues/nifi-minifi-cpp,dtrodrigues/nifi-minifi-cpp,dtrodrigues/nifi-minifi-cpp,dtrodrigues/nifi-minifi-cpp