Import v0.3.15 as v2.0.0

Import v0.3.15 from code.siemens.com as v2.0.0.

.reuse/dep5

@@ -9,7 +9,14 @@ Copyright: 2023 Siemens AG
 License: Apache-2.0
 
 # Files with version numbers
-Files: version
+Files:
+ VERSION
+ build/ci/docenv/VERSION
+ build/ci/goenv/VERSION
+ build/ci/manifest/VERSION
+ build/ci/reuse/VERSION
+ build/ci/script/VERSION
+ build/ci/shellcheck/VERSION
 Copyright: 2023 Siemens AG
 License: Apache-2.0
 
@@ -19,6 +26,8 @@ Files:
  testdata/cmd/solve/builtIns/*
  testdata/cmd/solve/cliOptions/*
  testdata/cmd/solve/inputData/*
+ testdata/cmd/solve/markdown/*
+ testdata/cmd/solve/regression/*
  testdata/cmd/solve/outputFormats/*
  testdata/cmd/solved/cliOptions/*
 Copyright: 2023 Siemens AG
@@ -30,3 +39,9 @@ Files:
  internal/port/grpc/optimizer-service_grpc.pb.go
 Copyright: 2023 Siemens AG
 License: Apache-2.0
+
+# Images files (SVG)
+Files:
+ docs/images/*.svg
+Copyright: 2023 Siemens AG
+License: CC-BY-SA-4.0