Cleanup of mostly asset files

- Fixes for all files
 - constexpr cleanup
 - Cosmetic changes
 - Remove punctuation from the end of messages

modules/base/scale/luascale.cpp

@@ -42,7 +42,7 @@ namespace {
         "scaling factor for this transformation. The script needs to define a function "
         "'scale' that takes the current simulation time in seconds past the J2000 epoch "
         "as the first argument, the current wall time as milliseconds past the J2000 "
-        "epoch the second argument and computes the three scaling factors."
+        "epoch the second argument and computes the three scaling factors"
     };
 
     struct [[codegen::Dictionary(LuaScale)]] Parameters {

modules/base/scale/nonuniformstaticscale.cpp

@@ -32,7 +32,7 @@ namespace {
         "Scale",
         "Scale",
         "These values are used as scaling factors for the scene graph node that this "
-        "transformation is attached to relative to its parent."
+        "transformation is attached to relative to its parent"
     };
 
     struct [[codegen::Dictionary(NonUniformStaticScale)]] Parameters {

modules/base/scale/staticscale.cpp

@@ -32,7 +32,7 @@ namespace {
         "Scale",
         "Scale",
         "This value is used as a scaling factor for the scene graph node that this "
-        "transformation is attached to relative to its parent."
+        "transformation is attached to relative to its parent"
     };
 
     struct [[codegen::Dictionary(StaticScale)]] Parameters {

modules/base/scale/timedependentscale.cpp

@@ -37,14 +37,14 @@ namespace {
         "The date at which this scale will be 0. The current value of the scale is "
         "computed by taking the difference between the current time and the reference "
         "date and multiplying it by the speed. This field must be formatted as: "
-        "YYYY-MM-DDThh:mm:ss.uuu  where h is a 24h clock and u microseconds."
+        "YYYY-MM-DDThh:mm:ss.uuu  where h is a 24h clock and u microseconds"
     };
 
     constexpr openspace::properties::Property::PropertyInfo SpeedInfo = {
         "Speed",
         "Speed",
         "The speed at which the value grows or shrinks. The units for this are meters "
-        "per second. The default value is 1 m/s."
+        "per second. The default value is 1 m/s"
     };
 
     constexpr openspace::properties::Property::PropertyInfo ClampToPositiveInfo = {
@@ -52,7 +52,7 @@ namespace {
         "Clamp to Positive",
         "If this value is true, the velocity computation will never result in any "
         "negative values. This is useful for instantaneous events that only propagate "
-        "forwards. The default value is 'true'."
+        "forwards. The default value is 'true'"
     };
 
     struct [[codegen::Dictionary(TimeDependentScale)]] Parameters {