Update to CEF 74.1.19

- Converted almost all the demos to Lazarus thanks to avra
- Reorganized "demos" directory.

demos/Delphi_VCL/URLRequest/uURLRequest.dfm

@@ -0,0 +1,70 @@
+object URLRequestFrm: TURLRequestFrm
+  Left = 0
+  Top = 0
+  BorderIcons = [biSystemMenu]
+  BorderStyle = bsSingle
+  Caption = 'URL request'
+  ClientHeight = 111
+  ClientWidth = 494
+  Color = clBtnFace
+  Font.Charset = DEFAULT_CHARSET
+  Font.Color = clWindowText
+  Font.Height = -11
+  Font.Name = 'Tahoma'
+  Font.Style = []
+  OldCreateOrder = False
+  Position = poScreenCenter
+  OnCloseQuery = FormCloseQuery
+  OnCreate = FormCreate
+  OnDestroy = FormDestroy
+  PixelsPerInch = 96
+  TextHeight = 13
+  object Label1: TLabel
+    Left = 16
+    Top = 19
+    Width = 19
+    Height = 13
+    Caption = 'URL'
+  end
+  object Edit1: TEdit
+    Left = 48
+    Top = 16
+    Width = 433
+    Height = 21
+    TabOrder = 0
+    Text = 
+      'https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/du' +
+      'mmy.pdf'
+  end
+  object DownloadBtn: TButton
+    Left = 16
+    Top = 51
+    Width = 465
+    Height = 25
+    Caption = 'Download'
+    TabOrder = 1
+    OnClick = DownloadBtnClick
+  end
+  object StatusBar1: TStatusBar
+    Left = 0
+    Top = 92
+    Width = 494
+    Height = 19
+    Panels = <
+      item
+        Width = 500
+      end>
+  end
+  object SaveDialog1: TSaveDialog
+    Left = 384
+    Top = 64
+  end
+  object CEFUrlRequestClientComponent1: TCEFUrlRequestClientComponent
+    OnRequestComplete = CEFUrlRequestClientComponent1RequestComplete
+    OnDownloadProgress = CEFUrlRequestClientComponent1DownloadProgress
+    OnDownloadData = CEFUrlRequestClientComponent1DownloadData
+    OnCreateURLRequest = CEFUrlRequestClientComponent1CreateURLRequest
+    Left = 80
+    Top = 64
+  end
+end