v2_2_6

What's Changed

• Modify neutrino class to add flow variables by @sindhu-ku in #50
• fix trackid variable name in stringstream by @sindhu-ku in #51
• Change genid to interaction id by @sindhu-ku in #52

New Contributors

• @sindhu-ku made their first contribution in #50

Full Changelog: v2_2_1...v2_2_6