chore(users/Profpatsch): Move Multipart2 into new webstuff package

Change-Id: I903f1b554beed1240d2a9cf14ff44d1f3cb41ec5
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9013
Tested-by: BuildkiteCI
Autosubmit: Profpatsch <mail@profpatsch.de>
Reviewed-by: Profpatsch <mail@profpatsch.de>

users/Profpatsch/my-webstuff/my-webstuff.cabal

@@ -0,0 +1,72 @@
+cabal-version:      3.0
+name:               my-webstuff
+version:            0.0.1.0
+author:             Profpatsch
+maintainer:         mail@profpatsch.de
+
+common common-options
+  ghc-options:
+      -Wall
+      -Wno-type-defaults
+      -Wunused-packages
+      -Wredundant-constraints
+      -fwarn-missing-deriving-strategies
+
+  -- See https://downloads.haskell.org/ghc/latest/docs/users_guide/exts.html
+  -- for a description of all these extensions
+  default-extensions:
+      -- Infer Applicative instead of Monad where possible
+    ApplicativeDo
+
+    -- Allow literal strings to be Text
+    OverloadedStrings
+
+    -- Syntactic sugar improvements
+    LambdaCase
+    MultiWayIf
+
+    -- Makes the (deprecated) usage of * instead of Data.Kind.Type an error
+    NoStarIsType
+
+    -- Convenient and crucial to deal with ambiguous field names, commonly
+    -- known as RecordDotSyntax
+    OverloadedRecordDot
+
+    -- does not export record fields as functions, use OverloadedRecordDot to access instead
+    NoFieldSelectors
+
+    -- Record punning
+    RecordWildCards
+
+    -- Improved Deriving
+    DerivingStrategies
+    DerivingVia
+
+    -- Type-level strings
+    DataKinds
+
+    -- to enable the `type` keyword in import lists (ormolu uses this automatically)
+    ExplicitNamespaces
+
+  default-language: GHC2021
+
+
+library
+    import: common-options
+    hs-source-dirs: src
+    exposed-modules:
+      Multipart2
+
+    build-depends:
+       base >=4.15 && <5
+     , my-prelude
+     , pa-prelude
+     , pa-label
+     , pa-error-tree
+     , pa-field-parser
+     , bytestring
+     , monad-logger
+     , dlist
+     , selective
+     , wai
+     , wai-extra