Add build scripts to function with the RISC OS build system.

The RISC OS build system can build most things, given a suitable
set of scripts. Here we invoke the 'MkROBuild' command which will
build things using the toolchain on the RISC OS build system.

The artifacts generated are in the usual format, allowing users
to copy the tool into their library as they see fit.

.robuild.yaml

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+%YAML 1.0
+---
+
+# RISC OS Build service build file
+# How to build manually on a non-RISC OS system:
+#   rm -f /tmp/source-archive.zip ; zip -9r /tmp/source-archive.zip .robuild.yaml src LICENSE ; riscos-build-online -i /tmp/source-archive.zip -o /tmp/built and unzip -l /tmp/built,a91
+
+# Defines a list of jobs which will be performed.
+# Only 1 job will currently be executed.
+jobs:
+  build:
+    # Env defines system variables which will be used within the environment.
+    # Multiple variables may be assigned.
+    env:
+      "Sys$Environment": ROBuild
+      "BUILD32": 1
+      "Locale": UK
+
+    # Directory to change to before running script
+    dir: src
+
+    # Commands which should be executed to perform the build.
+    # The build will terminate if any command returns a non-0 return code or an error.
+    script:
+      - /MkROBuild
+
+    # Outputs from the build are defined in artifacts
+    # These are a list of artifacts to report directories or files.
+    # Only a single item is currently supported.
+    artifacts:
+      # Each element of the artifacts should have a path key, which gives the file or
+      # directory to return.
+      - path: Artifacts

src/MkROBuild,feb

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+| Build on the RISC OS Build service
+
+Dir <Obey$Dir>
+cdir ^.Artifacts
+cdir ^.Artifacts.Library
+cdir ^.Artifacts.Library.Internet
+amu -f MakeFileROBuild install INSTDIR=^.Artifacts.Library.Internet
+if "<Sys$ReturnCode>" <> 0 Then Error Failed to build
+
+| Two LICENSE files are present, so must be supplied to the user.
+copy LICENSE ^.Artifacts.LICENSE/1   ~CVF
+copy ^.LICENSE ^.Artifacts.LICENSE/2 ~CVF

src/Resources/UK/Help

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+WakeOnLAN	{Module_FullVersionAndDate}
+*WakeOnLAN is used to send a magic network packet to a machine to cause it to wake up. The remote machine must be configured to accept such network packets.
+Syntax: *WakeOnLAN -m <mac address> [ -b <broadcast address> ] [-v]