doc: Create missing markdown documents

Following documents are created:
  - dlt-control.1.md
  - dlt-adaptor-stdin.1.md
  - dlt-adaptor-udp.1.md

Signed-off-by: Saya Sugiura <ssugiura@jp.adit-jv.com>

1 files changed, 67 insertions, 0 deletions

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+% DLT-ADAPTOR-STDIN(1)
+
+# NAME
+
+**dlt-adaptor-stdin** - Forward input from stdin to DLT Daemon
+
+# SYNOPSIS
+
+**dlt-adaptor-stdin** \[**-a** apid\] \[**-c** ctid\] \[**-b**\] \[**-s**\] \[**-t** timeout\] \[**-h**\]
+
+# DESCRIPTION
+
+This is a small external program for forwarding input from stdin to DLT Daemon.
+
+## OPTIONS
+
+-a
+
+:    Set application ID to apid (default: SINA)
+
+-c
+
+:    Set context ID tp ctid (default: SINC)
+
+-b
+
+:    To flush the buffered logs while unregistering app
+
+-s
+
+:    Set socket to Blocking mode if unix socket is used
+
+-t
+
+:    Set timeout when sending messages at exit, in ms (default: 10000 = 10sec)
+
+-h
+
+:    Show help
+
+# EXAMPLES
+
+Forward all dmesg to DLT Daemon without discarding any messages
+    **dmesg | dlt-adaptor-stdin -b -s**
+
+Send DBUS messages to DLT Daemon using the program dbus-monitor
+    **dbus-monitor | dlt-adaptor-stdin**
+
+# EXIT STATUS
+
+Non zero is returned in case of failure.
+
+# AUTHOR
+
+Saya Sugiura (ssugiura (at) jp.adit-jv (dot) com)
+
+# COPYRIGHT
+
+Copyright (C) 2019 Advanced Driver Information Technology, Bosch and DENSO. License MPL-2.0: Mozilla Public License version 2.0 http://mozilla.org/MPL/2.0/.
+
+# BUGS
+
+See Github issue: <https://github.com/GENIVI/dlt-daemon/issues>
+
+# SEE ALSO
+
+**dlt-daemon(1)**