MAPG-44 modify DB structure to store pov data

database/migrations/structure/20200704_0005_pov_for_places.sql

@@ -0,0 +1,8 @@
+ALTER TABLE
+  `places`
+ADD
+  `pov_heading` decimal(6, 3) NOT NULL DEFAULT 0.0,
+ADD
+  `pov_pitch` decimal(5, 3) NOT NULL DEFAULT 0.0,
+ADD
+  `pov_zoom` decimal(5, 4) NOT NULL DEFAULT 0.0;