docs: rename events, to put less emphasis on germline vs. somativ in …

…normal samples

Due to sampling issues, this distinction is usually not that clear, so we should keep the wording here a bit more cautious.

config/scenario.yaml

@@ -29,6 +29,6 @@ events:
   somatic_tumor_low: "tumor:]0.0,0.1[ & normal:0.0"
   somatic_tumor_medium: "tumor:[0.1,0.3[ & normal:0.0"
   somatic_tumor_high: "tumor:[0.3,1.0] & normal:0.0"
-  somatic_normal: "normal:]0.0,0.5[ | normal:]0.5,1.0["
-  germline_hom: "normal:1.0"
-  germline_het: "normal:0.5"
+  normal_het: "normal:0.5"
+  normal_hom: "normal:1.0"
+  normal_other: "normal:]0.0,0.5[ | normal:]0.5,1.0["