refactor(windows): move windows Engine help in-repo

Relates-to: #12347

Author: mcdurdin

resources/build/help-keyman-com.sh

@@ -93,6 +93,7 @@ function upload_keyman_help {
     windows)
       # Note: `/windows/src/desktop/help/build.sh web` must be run first
       upload windows/bin/help/md/desktop products/windows/$VERSION_RELEASE
+      upload windows/help/engine developer/engine/windows/$VERSION_RELEASE
       ;;
     developer)
       # Note: `/developer/build.sh api` must be run first - covers both uploads

windows/docs/engine/api/IKeyman/Apply.md

@@ -0,0 +1,18 @@
+---
+title: IKeyman::Apply Method
+---
+
+## Introduction
+
+The `IKeyman::Apply` method applies the changes which have been made
+through the current API instantiation to the Keyman Engine. If
+[`IKeyman::AutoApply`](AutoApply) is set to `False`, `Apply` must be
+called after making changes through the Keyman API. The documentation
+for each method that makes changes documents whether or not `Apply`
+needs to be called.
+
+## Specification
+
+``` clike
+void Apply(void)
+```

windows/docs/engine/api/IKeyman/AutoApply.md

@@ -0,0 +1,21 @@
+---
+title: IKeyman::AutoApply Property
+---
+
+## Introduction
+
+The `IKeyman::AutoApply` property determines if the API will apply
+changes automatically to the Keyman Engine after each change is made.
+Some changes are applied immediately, such as installing a keyboard
+layout. However other changes will not be applied unless the
+[`Apply`](Apply) method is called, or unless `AutoApply` is set to
+`True`. The documentation for each method that makes changes documents
+whether or not `Apply` needs to be called.
+
+`AutoApply` defaults to `True`.
+
+## Specification
+
+``` clike
+bool AutoApply
+```

windows/docs/engine/api/IKeyman/Control.md

@@ -0,0 +1,16 @@
+---
+title: IKeyman::Control Property
+---
+
+## Introduction
+
+The `IKeyman::Control` property returns the Keyman
+[`IKeymanControl`](../IKeymanControl) interface which provides methods
+to control various aspects of the Keyman process and user interface
+interactions.
+
+## Specification
+
+``` clike
+readonly IKeymanControl* Control
+```

windows/docs/engine/api/IKeyman/Errors.md

@@ -0,0 +1,18 @@
+---
+title: IKeyman::Errors Property
+---
+
+## Introduction
+
+The `IKeyman::Errors` property returns the Keyman
+[`IKeymanErrors`](../IKeymanErrors) interface which provides a list of
+errors encountered by the Keyman API, for example when installing a
+keyboard or package. When the Keyman API raises an exception, e.g. when
+trying to install a corrupt package file, there may be additional
+details available in the `Errors` collection.
+
+## Specification
+
+``` clike
+readonly IKeymanErrors* Errors
+```

windows/docs/engine/api/IKeyman/Hotkeys.md

@@ -0,0 +1,17 @@
+---
+title: IKeyman::Hotkeys Property
+---
+
+## Introduction
+
+The `IKeyman::Hotkeys` property returns the Keyman
+[`IKeymanHotkeys`](../IKeymanHotkeys) interface which provides a list of
+configured user interface hotkeys. Hotkeys for activating a specific
+keyboard layout are not listed here; these are visible under the
+[`IKeymanLanguage::Hotkey`](../IKeymanLanguage/Hotkey) property.
+
+## Specification
+
+``` clike
+readonly IKeymanHotkeys* Hotkeys
+```

windows/docs/engine/api/IKeyman/Keyboards.md

@@ -0,0 +1,15 @@
+---
+title: IKeyman::Keyboards Property
+---
+
+## Introduction
+
+The `IKeyman::Keyboards` property returns the Keyman
+[`IKeymanKeyboardsInstalled`](../IKeymanKeyboardsInstalled) interface
+which provides a list of installed Keyman keyboards.
+
+## Specification
+
+``` clike
+readonly IKeymanKeyboardsInstalled* Keyboards
+```

windows/docs/engine/api/IKeyman/Languages.md

@@ -0,0 +1,15 @@
+---
+title: IKeyman::Languages Property
+---
+
+## Introduction
+
+The `IKeyman::Languages` property returns the Keyman
+[`IKeymanLanguages`](../IKeymanLanguages) interface which provides a
+list of all currently available Windows languages and input methods.
+
+## Specification
+
+``` clike
+readonly IKeymanLanguages* Languages
+```

windows/docs/engine/api/IKeyman/Options.md

@@ -0,0 +1,15 @@
+---
+title: IKeyman::Options Property
+---
+
+## Introduction
+
+The `IKeyman::Options` property returns the Keyman
+[`IKeymanOptions`](../IKeymanOptions) interface which provides a list of
+configuration settings and values in Keyman Engine for Windows.
+
+## Specification
+
+``` clike
+readonly IKeymanOptions* Options
+```

windows/docs/engine/api/IKeyman/Packages.md

@@ -0,0 +1,15 @@
+---
+title: IKeyman::Packages Property
+---
+
+## Introduction
+
+The `IKeyman::Packages` property returns the Keyman
+[`IKeymanPackagesInstalled`](../IKeymanPackagesInstalled) interface
+which provides a list of installed Keyman keyboard packages.
+
+## Specification
+
+``` clike
+readonly IKeymanPackagesInstalled* Packages
+```