Text change information

• content - Change content
• inserted - true if text got inserted
• pos - Change position
• len - Change length

struct Efl.Access.Text_Change_Info {
    content: string;
    inserted: bool;
    pos: size;
    len: size;
}

typedef struct _Efl_Access_Text_Change_Info {
    const char *content;
    Eina_Bool inserted;
    size_t pos;
    size_t len;
} Efl_Access_Text_Change_Info;