fix(hue): Fix Mirek -> Kelvin conversion constant.

This constant should be 100, but I resolved a conflict during a rebase incorrectly
when prepping the original PR and it got set to 11 instead of 100.

drivers/SmartThings/philips-hue/src/consts.lua

@@ -6,6 +6,6 @@ Consts.DEFAULT_MAX_MIREK = 500
 Consts.MIN_TEMP_KELVIN_COLOR_AMBIANCE = 2000
 Consts.MIN_TEMP_KELVIN_WHITE_AMBIANCE = 2200
 Consts.MAX_TEMP_KELVIN = 6500
-Consts.KELVIN_STEP_SIZE = 11
+Consts.KELVIN_STEP_SIZE = 100
 
 return Consts

drivers/SmartThings/philips-hue/src/test/spec/unit/utils_spec.lua

@@ -1,16 +1,32 @@
 describe("utility functions", function()
+  local Consts
   local Fields
   local HueDeviceTypes
   local st_utils
   local utils
 
   setup(function()
+    Consts = require "consts"
     Fields = require "fields"
     HueDeviceTypes = require "hue_device_types"
     utils = require "utils"
     st_utils = require "st.utils"
   end)
 
+  describe("that perform mirek to kelvin conversions behave properly:", function()
+    it("Common minimum mirek of 153 results in 6500 Kelvin", function()
+      local expected_kelvin = 6500
+      local computed_kelvin = utils.mirek_to_kelvin(Consts.DEFAULT_MIN_MIREK)
+      assert.are.equal(expected_kelvin, computed_kelvin, string.format("Expected value of %s, got %s", expected_kelvin, computed_kelvin))
+    end)
+
+    it("Common maximum mirek of 500 results in 2000 Kelvin", function()
+      local expected_kelvin = 2000
+      local computed_kelvin = utils.mirek_to_kelvin(Consts.DEFAULT_MAX_MIREK)
+      assert.are.equal(expected_kelvin, computed_kelvin, string.format("Expected value of %s, got %s", expected_kelvin, computed_kelvin))
+    end)
+  end)
+
   describe("that handle raw data will handle their input correctly:", function()
     local test_mac_addr
     local test_cisco_mac_addr