Need better error output when chip-tool struct members are not quoted. (

#14906)

chip-tool expects struct member names in double-quotes. When that does
not happen, it does not make it clear that's what it expects.

Adjust the error message to say what needs to happen.

examples/chip-tool/commands/clusters/ComplexArgument.h

@@ -205,14 +205,14 @@ class ComplexArgumentParser
  return CHIP_NO_ERROR;
  }
 
- static CHIP_ERROR EnsureMemberExist(const char * label, bool hasMember)
+ static CHIP_ERROR EnsureMemberExist(const char * label, const char * memberName, bool hasMember)
  {
  if (hasMember)
  {
  return CHIP_NO_ERROR;
  }
 
- ChipLogError(chipTool, "%s is required.", label);
+ ChipLogError(chipTool, "%s is required. Should be provided as {\"%s\": value}", label, memberName);
  return CHIP_ERROR_INVALID_ARGUMENT;
  }
 

examples/chip-tool/templates/ComplexArgumentParser-src.zapt

@@ -9,7 +9,7 @@ CHIP_ERROR ComplexArgumentParser::Setup(const char * label, {{zapTypeToEncodable
 
  {{#zcl_struct_items}}
  {{#unless isOptional}}
- ReturnErrorOnFailure(ComplexArgumentParser::EnsureMemberExist("{{parent.name}}.{{asLowerCamelCase label}}", value.isMember("{{asLowerCamelCase label}}")));
+ ReturnErrorOnFailure(ComplexArgumentParser::EnsureMemberExist("{{parent.name}}.{{asLowerCamelCase label}}", "{{asLowerCamelCase label}}", value.isMember("{{asLowerCamelCase label}}")));
  {{/unless}}
  {{/zcl_struct_items}}