title	description
3 kinds Boolean support in ApiHug framework	bool should has 2 flag, but 3 design ways really freak out.

3 kinds Boolean

proto primitive:

//Define
bool flag =1;

//Assign
flag: true;

proto wrapper:

//Define
google.protobuf.BoolValue flag = 1;

//Assign
flag: {
    value: true;
}

ApiHug Enum:

//Define
hope.common.BoolType flag = 1;

//Assign
flag: TRUE;

Why

ApiHug	pros	cons	Comment
Proto Primitive	straightforward	default always false	as no default or optional present since proto3
Proto Wrapper	support not set	syntax a bit complex	when assign you need a message wrapper
ApiHug Enum	straightforward	introduce depend on ApiHug Lib	only used in meta generation no affect on application layer

Since ApiHug Lib 0.6.0-RELEASE and IDE Plugin version 0.2.0，avoid the usage of of Proto's primitive & wrapper ways, use ApiHug Enum as mandatory.

Otherwise the IDE plugin can not parse the AST tree, any bool dependent flag can not be picked up.