pip_install_wheel: add a generic do_install for bootstrapping

Several recipes are duplicating the same bootstrap logic for installing
a wheel without using any tools.  Add an implementation to
pip_install_wheel to centralise the code, and remove the duplicated code
from the following recipes:

- python3-flit-core
- python3-pip
- python3-setuptools
- python3-wheel

(From OE-Core rev: d5d702a2cd06f863340f8e4cdce0904c9d86384d)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/python/python3-flit-core_3.7.1.bb

@@ -22,8 +22,7 @@ PEP517_SOURCE_PATH = "${S}/flit_core"
 PIP_INSTALL_PACKAGE = "flit_core"
 
 do_install:class-native () {
-    install -d ${D}${PYTHON_SITEPACKAGES_DIR}
-    unzip -d ${D}${PYTHON_SITEPACKAGES_DIR} ${PIP_INSTALL_DIST_PATH}/flit_core*.whl
+    pip_install_wheel_do_bootstrap_install
 }
 
 PACKAGES =+ "${PN}-tests"

meta/recipes-devtools/python/python3-pip_22.0.3.bb

@@ -19,9 +19,7 @@ SRC_URI += "file://reproducible.patch"
 SRC_URI[sha256sum] = "f29d589df8c8ab99c060e68ad294c4a9ed896624f6368c5349d70aa581b333d0"
 
 do_install:class-native() {
-    # Bootstrap to prevent dependency loop in python3-pip-native
-    install -d ${D}${PYTHON_SITEPACKAGES_DIR}
-    unzip -d ${D}${PYTHON_SITEPACKAGES_DIR} ${PIP_INSTALL_DIST_PATH}/*.whl
+    pip_install_wheel_do_bootstrap_install
 
     # pip install would normally generate [console_scripts] in ${bindir}
     install -d ${D}/${bindir}

meta/recipes-devtools/python/python3-setuptools_59.5.0.bb

@@ -22,9 +22,7 @@ DEPENDS:remove:class-native = "python3-pip-native python3-setuptools-native"
 DEPENDS:append:class-native = " unzip-native"
 
 do_install:class-native() {
-    # Bootstrap to prevent dependency loop in python3-pip-native
-    install -d ${D}${PYTHON_SITEPACKAGES_DIR}
-    unzip -d ${D}${PYTHON_SITEPACKAGES_DIR} ${PIP_INSTALL_DIST_PATH}/*.whl
+    pip_install_wheel_do_bootstrap_install
 }
 
 RDEPENDS:${PN} = "\

meta/recipes-devtools/python/python3-wheel_0.37.1.bb

@@ -13,9 +13,7 @@ SRC_URI += " file://0001-Backport-pyproject.toml-from-flit-backend-branch.patch"
 DEPENDS:remove:class-native = "python3-pip-native"
 
 do_install:class-native () {
-    # We need to bootstrap python3-wheel-native
-    install -d ${D}${PYTHON_SITEPACKAGES_DIR}
-    unzip -d ${D}${PYTHON_SITEPACKAGES_DIR} ${PIP_INSTALL_DIST_PATH}/*.whl
+    pip_install_wheel_do_bootstrap_install
 
     # pip install would normally generate [project.scripts] in ${bindir}
     install -d ${D}/${bindir}