beremiz

Add function example to first_steps example

2018-05-31, Surkov Sergey
ce5bd74ed552
file isExecutable
Add function example to first_steps example

It'll be used in documentation to show how to create function in
Beremiz.
<xsd:attribute name="Command" type="xsd:string" use="optional" default="make -C %(buildpath)s all BEREMIZSRC=%(src)s BEREMIZCFLAGS=%(cflags)s MD5=%(md5)s USE_BEREMIZ=1 FROM_BEREMIZ=1"/>