Wait for terminal initialization for CodeChecker log command

[csordasmarton]

Closes #50

Wait some time until the terminal is initialized properly when getting CodeChecker log command.

For now there is no elegant solution for this problem than to wait some time by using setTimeout function.

[Discookie]

Another possible workaround can be to send a dummy newline before the command with terminal.sendText('');, but I don't have the environment to test that.

[Discookie]

Other than testing the extra newline, the rest LGTM.

[csordasmarton]

Your proposed solution is not working properly. My terminal will look like this:

~/CodeChecker/bin/CodeChecker log --output "/home/username/compile_commands.json" --build "make"direnv: loading ../.envrc
csordasmarton@0000 ~/helloworld $ 
csordasmarton@0000 ~/helloworld $ ~/CodeChecker/bin/CodeChecker log --output "/home/username/compile_commands.json" --build "make"

So the CodeChecker log command is printed twice.

With my solution we will wait until the terminal is initialized and it will print the command only once. So the terminal will look like this:

direnv: loading ../.envrc
csordasmarton@0000 ~/helloworld $ ~/CodeChecker/bin/CodeChecker log --output "/home/username/compile_commands.json" --build "make"

[Discookie]

Worth a shot at least - hopefully Code adds some kind of syncing mechanism in the future.
Otherwise, LGTM!