fix: deterministic behaviour for radar by storing the random fractions when generating rd.json (#372)

* Store the random blip positions when generating rd.json

Fixes: https://github.com/AOEpeople/aoe_technology_radar/issues/148

Simple solution to creating stable blips is to store the randomly generated angle and radius in rg.json.

Attempted a few hash functions but found it hard to spread blips 'nicely'
(they tended to clump into groups or sections of the radar).

* distribute points within .1 and .9 of the arc

---------

Co-authored-by: Bastian Ike <bastian.ike@bare.id>

scripts/generateJson/radar.ts

@@ -146,6 +146,8 @@ const addRevisionToItem = (
     quadrant: "",
     body: "",
     info: "",
+    angleFraction: Math.random(),
+    radiusFraction: Math.random()
   },
   revision: Revision
 ): Item => {