[THRIFT-4973] Add deprecation messages for csharp and netcore

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Implemented
• Fix Version/s: 0.14.0
• Component/s: C# - Compiler, netcore - Compiler
• Assignee: Jens Geyer
• Reporter: Jens Geyer
• Created: 10/Oct/19 21:49
• Updated: 11/Feb/21 22:26
• Resolved: 11/Aug/20 18:42

Description

We want netstd to replace c#/netcore, so we should mark them accordingly with a warning.,

Issue Links

• links to: GitHub Pull Request #1895