python3-prompt-toolkit: upgrade 3.0.48 -> 3.0.50

Changelog:
===========
- On Windows, use virtual terminal input when available.
- Support for multiline suggestions.
- Handle InvalidStateError during termination when using
  run_in_terminal/patch_stdout. This can happen in some cases during
  cancellation, probably when using anyio.
- Fix cursor that remains in hidden state when the application exits. This can
  happen when the application doesn't show the cursor and erase_when_done is
  being used.
- Drop support for Python 3.7
- Fixes non user impacting regression on the output rendering. Don't render
  cursor hide/show ANSI escape codes if not needed.

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-python/recipes-devtools/python/python3-prompt-toolkit_3.0.50.bb

@@ -0,0 +1,26 @@
+SUMMARY = "Library for building powerful interactive command lines in Python"
+HOMEPAGE = "https://python-prompt-toolkit.readthedocs.io/"
+LICENSE = "BSD-3-Clause"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=b2cde7da89f0c1f3e49bf968d00d554f"
+
+SRC_URI[sha256sum] = "544748f3860a2623ca5cd6d2795e7a14f3d0e1c3c9728359013f79877fc89bab"
+
+inherit pypi setuptools3
+
+PYPI_PACKAGE = "prompt_toolkit"
+UPSTREAM_CHECK_PYPI_PACKAGE = "prompt_toolkit"
+
+RDEPENDS:${PN} += " \
+    python3-core \
+    python3-six \
+    python3-terminal \
+    python3-threading \
+    python3-wcwidth \
+    python3-datetime \
+    python3-shell \
+    python3-image \
+    python3-asyncio \
+    python3-xml \
+"
+
+BBCLASSEXTEND = "native nativesdk"