Give JWK independent value semantics for thread-safe copies

jwt_full.nimble

@@ -1,6 +1,6 @@
 # Package
 
-version       = "0.4.0"
+version       = "0.5.0"
 author        = "Jonathan Bernard"
 description   = "Full JWT, JWS, JWE, and JWK implementation for Nim, compliant with RFCs 7515-7519."
 license       = "GPL-3.0-or-later"
@@ -13,4 +13,5 @@ requires "bearssl"
 requires "https://github.com/yglukhov/bearssl_pkey_decoder"
 
 task unittest, "Run the unit test suites.":
-  exec "nim c -r src/test/unit/runner"
+  exec "nim c -r --threads:on --gc:arc src/test/unit/runner"
+  exec "nim c -r --threads:on --gc:orc src/test/unit/runner"