auto-replace long functions with short names

adI = addInfo
adD = addDropdown
adO = addOption
adF = addField

before: String buffer usage: 3183 of 4037 bytes
after:    String buffer usage: 2805 of 4037 bytes

wled00/fcn_declare.h

@@ -362,6 +362,7 @@ int getNumVal(const String* req, uint16_t pos);
 void parseNumber(const char* str, byte* val, byte minv=0, byte maxv=255);
 bool getVal(JsonVariant elem, byte* val, byte minv=0, byte maxv=255);
 bool updateVal(const char* req, const char* key, byte* val, byte minv=0, byte maxv=255);
+void oappendUseDeflate(bool OnOff); // enable / disable string squeezing
 bool oappend(const char* txt); // append new c string to temp buffer efficiently
 bool oappendi(int i);          // append new number to temp buffer efficiently
 void sappend(char stype, const char* key, int val);