Titan does not support the open type
## Summary
Titan does not support the open type (any) as described in
## Steps and/or TTCN-3 code to reproduce
In a TTCN-3 module, insert
```
external function fx_printf(charstring p_format, any p_data);
```
## What is the current bug behavior?
Titan cannot parse ```any```
## What is the expected correct behavior?
This should be translated in a way that the corresponding function defined in C++ takes a character string as its first parameter and an arbitrary type as its second parameter.
## Relevant logs and/or screenshots
```
../src/exfn.ttcn:3.50-52: error: at or before token `any': syntax error
```
## Possible fixes
The ANY type shall be defined in the Titan framework, which can be arbitrarily used for whatever TTCN-3 type data element is provided as the 2nd actual parameter. Probably architectural planning is needed for this. Let's talk about this some time.
## Titan version
8.1.0
## Platform details (OS type and version)
Microsoft Windows 10 Enterprise 10.0.19042
/cc @aknappqwt @mmagyari
issue