Adds Ch. 19.31B; amends §§ 19.01.030, 19.01.050.C, 19.03.020, 19.03.040 and 19.05.040, Ch. 19.05, Tables 5.1 and 5.2, §§ 19.06.030 and 19.06.040, Ch. 19.06, Table 6.1, and §§ 19.15.010.B and 19.34.020, E-1 (Evergreen Way) and MUO (Mixed Use Overlay) zones