Fix Eevee blackbody wrong with non-default scene linear color space

* Port over new code tables from Cycles
* Convert Rec.709 to scene linear for lookup table.
* Move code for wavelength and blackbody to IMB so they can access the
  required transforms, which are not in blenlib.
* Remove clamping from blackbody shader to bypass the texture read.
  Since it's variable now easiest to just always read from the texture
  than pass additional parameters.
* Fold XYZ to RGB conversion into the wavelength table.

Ref T68926

source/blender/draw/intern/draw_fluid.c

@@ -20,6 +20,8 @@
 
 #include "BKE_colorband.h"
 
+#include "IMB_colormanagement.h"
+
 #include "GPU_texture.h"
 
 #include "draw_manager.h"
@@ -52,7 +54,7 @@ static void create_flame_spectrum_texture(float *data)
   float *spec_pixels = (float *)MEM_mallocN(TFUNC_WIDTH * 4 * 16 * 16 * sizeof(float),
                                             "spec_pixels");
 
-  blackbody_temperature_to_rgb_table(data, TFUNC_WIDTH, 1500, 3000);
+  IMB_colormanagement_blackbody_temperature_to_rgb_table(data, TFUNC_WIDTH, 1500, 3000);
 
   for (int i = 0; i < 16; i++) {
     for (int j = 0; j < 16; j++) {