add insert/select per type specs

add last_insert_id
add Driver.quote

src/sqlite3/connection.cr

@@ -13,6 +13,10 @@ class SQLite3::Connection < DB::Connection
     LibSQLite3.close_v2(self)
   end
 
+  def last_insert_id : Int64
+    LibSQLite3.last_insert_rowid(self)
+  end
+
   def to_unsafe
     @db
   end

src/sqlite3/driver.cr

@@ -2,6 +2,12 @@ class SQLite3::Driver < DB::Driver
   def build_connection
     SQLite3::Connection.new(options)
   end
+
+  # Quotes the given string, making it safe to use in an SQL statement.
+  # It replaces all instances of the single-quote character with two single-quote characters.
+  def self.quote(string)
+    string.gsub('\'', "''")
+  end
 end
 
 DB.register_driver "sqlite3", SQLite3::Driver