Make accounts, service, and result more Nim friendly

examples/accounts/account_ex.nim

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+import libnx/wrapper/gfx
+import libnx/wrapper/hid
+import libnx/wrapper/console
+import libnx/account
+import libnx/utils
+
+proc main() =
+  gfxInitDefault()
+  discard consoleInit(nil)
+
+  echo "\x1b[5;2H" & "Account info:"
+
+  withAccountService:
+    try:
+      let user = getActiveUser()
+      echo "\x1b[6;2HUsername: " & user.username
+      echo "\x1b[7;2HMiiID: " & $user.miiID
+      echo "\x1b[8;2HIconID: " & $user.iconID
+    except AccountError:
+      echo "\x1b[6;2HNo user currently selected!"
+
+  mainLoop:
+    let keysDown = hidKeysDown(CONTROLLER_P1_AUTO)
+
+    if (keysDown and KEY_PLUS.uint64) > 0.uint64:
+      break
+
+main()

examples/accounts/account_ex.nim.cfg

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+--path="../../src"