Merge pull request #1875 in SNORT/snort3 from ~DAVMCPHE/snort3:stream_tcp_init_race_c...

Merge pull request #1875 in SNORT/snort3 from ~DAVMCPHE/snort3:stream_tcp_init_race_condition to master

Squashed commit of the following:

commit fd95dddf1c1087d8834f3ee04e3a6fb559798f61
Author: davis mcpherson <davmcphe@cisco.com>
Date:   Mon Dec 2 16:40:35 2019 -0500

    stream_tcp: refactor stream_tcp initialization to create reassemblers during plugin init

    stream_tcp: refactor to initialize tcp normalizers during plugin init

    stream_tcp:: fix TcpState post increment operator to stop increment at max value (and use correct max value)