Add more template functions.

schemas/2015-01-01/deploymentTemplate.json

@@ -603,8 +603,8 @@
     },
     "expression": {
       "type": "string",
-      "pattern": "^\\[(concat|parameters|variables|deployment|reference|resourceId|resourceGroup|subscription|list.*|base64|providers|copyIndex|padLeft|replace|toLower|toUpper|startsWith|endsWith|length|split|skip|take|contains|intersection|union|first|last|indexOf|lastIndexOf|add|sub|mul|div|mod|min|max|range|string|int|trim|uri|uniqueString|substring|empty)\\(.*\\).*\\]$",
-      "description": "Deployment template expression.  Expressions are enclosed in [] and must start with a function of concat(), parameters(), variables(), deployment(), reference(), resourceId(), resourceGroup(), subscription(), list*(), base64(), providers(), copyIndex(), padLeft(), replace(), toLower(), toUpper(), length(), split(), skip(), take(), add(), sub(), mul(), div(), mod(), string(), int(), trim(), uri(), uniqueString(), substring(), empty(), contains(), intersection(), union(), first(), last(), indexOf(), lastIndexOf(), startsWith(), endsWith(), min(), max(), range()"
+      "pattern": "^\\[(concat|parameters|variables|deployment|reference|resourceId|resourceGroup|subscription|list.*|base64|providers|copyIndex|padLeft|replace|toLower|toUpper|startsWith|endsWith|length|split|skip|take|contains|intersection|union|first|last|indexOf|lastIndexOf|add|sub|mul|div|mod|min|max|range|string|int|float|bool|trim|uri|uniqueString|substring|base64ToString|base64ToJson|uriComponentToString|uriComponent|dataUriToString|dataUri|array|createArray|coalesce|empty|less|lessOrEquals|greater|greaterOrEquals|equals)\\(.*\\).*\\]$",
+      "description": "Deployment template expression. Expressions are enclosed in [] and must start with a function of concat(), parameters(), variables(), deployment(), reference(), resourceId(), resourceGroup(), subscription(), list*(), base64(), providers(), copyIndex(), padLeft(), replace(), toLower(), toUpper(), length(), split(), skip(), take(), add(), sub(), mul(), div(), mod(), string(), int(), trim(), uri(), uniqueString(), substring(), empty(), contains(), intersection(), union(), first(), last(), indexOf(), lastIndexOf(), startsWith(), endsWith(), min(), max(), range(), base64ToString(), base64ToJson(), uriComponentToString(), uriComponent(), dataUriToString(), dataUri(), array(), createArray(), coalesce(), float(), bool(), less(), lessOrEquals(), greater(), greaterOrEquals(), equals()"
     },
     "numberOrExpression": {
       "oneOf": [