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/pyproject.toml b/pyproject.toml
index 62878b4..55f3f2a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,16 +5,11 @@
 authors = ["Arm Ltd."]
 license = "BSD-3-Clause"
 readme = "readme.rst"
-packages = [
-	{ include = "memory", from = "tools/memory"}
-]
-
-[tool.poetry.scripts]
-memory = "memory.memmap:main"
 
 [tool.poetry.dependencies]
 python = "^3.8"
 cot-dt2c = {path = "tools/cot_dt2c", develop = true}
+memory = {path = "tools/memory", develop = true}
 tlc = {path = "tools/tlc", develop = true}
 
 [tool.poetry.group.docs]
@@ -30,9 +25,3 @@
 
 [tool.poetry.group.ci.dependencies]
 click = "^8.1.3"
-
-[tool.poetry.group.memory.dependencies]
-pyelftools = "^0.29"
-anytree = "^2.8.0"
-click = "^8.1.3"
-prettytable = "^3.5.0"