`TFPHTTPClient`
pl	ro	OnRedirect
pl	ro	OnPassword
pl	ro	OnDataReceived
pl	ro	OnDataSent
pl	ro	OnHeaders
pl	ro	OnGetSocketHandler
pl	ro	OnVerifySSLCertificate
pl	ro	OnEventStream

`TFPCustomHTTPClient`
pt		OnRedirect
pt		OnPassword
pt		OnDataReceived
pt		OnDataSent
pt		OnHeaders
pt		OnGetSocketHandler
pt		OnVerifySSLCertificate
pt		OnEventStream