refactor(memmap): migrate to Poetry

This change refactors the memmap tool into a Poetry project, with its
own dependencies. You can continue to run it manually with:

    poetry run memory <args>

Change-Id: I346283df1b8bfad4babc1f5a3861dab94d4a006a
Signed-off-by: Chris Kay <chris.kay@arm.com>
diff --git a/docs/tools/memory-layout-tool.rst b/docs/tools/memory-layout-tool.rst
index 8874bd7..d9c358d 100644
--- a/docs/tools/memory-layout-tool.rst
+++ b/docs/tools/memory-layout-tool.rst
@@ -23,7 +23,7 @@
 
     .. code:: shell
 
-        poetry install --with memory
+        poetry install --no-root
 
 #. Verify that the tool runs in the installed virtual environment
 
@@ -231,6 +231,6 @@
 
 --------------
 
-*Copyright (c) 2023, Arm Limited. All rights reserved.*
+*Copyright (c) 2023-2025, Arm Limited. All rights reserved.*
 
 .. _Poetry: https://python-poetry.org/docs/