BaseTools: Add YAML files with path env and tool extdeps

https://bugzilla.tianocore.org/show_bug.cgi?id=2315

Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

BaseTools/Bin/gcc_aarch64_linux_ext_dep.yaml

@@ -0,0 +1,21 @@
+## @file
+# Download GCC AARCH64 compiler from Linaro's release site
+# Set shell variable GCC5_AARCH64_INSTALL to this folder
+#
+# This is only downloaded when a build activates scope gcc_aarch64_linux
+#
+# Copyright (c) Microsoft Corporation.
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+##
+{
+  "scope": "gcc_aarch64_linux",
+  "type": "web",
+  "name": "gcc_aarch64_linux",
+  "source": "http://releases.linaro.org/components/toolchain/binaries/7.4-2019.02/aarch64-linux-gnu/gcc-linaro-7.4.1-2019.02-x86_64_aarch64-linux-gnu.tar.xz",
+  "version": "7.4.1",
+  "sha256": "27f1dc2c491ed61ae8f0d4b0c11de59cd2f7dd9c94761ee7153006fcac1bf9ab",
+  "compression_type": "tar",
+  "internal_path": "/gcc-linaro-7.4.1-2019.02-x86_64_aarch64-linux-gnu/",
+  "flags": ["set_shell_var", ],
+  "var_name": "GCC5_AARCH64_INSTALL"
+}

BaseTools/Bin/gcc_arm_linux_ext_dep.yaml

@@ -0,0 +1,21 @@
+## @file
+# Download GCC ARM compiler from Linaro's release site
+# Set shell variable GCC5_ARM_INSTALL to this folder
+#
+# This is only downloaded when a build activates scope gcc_arm_linux
+#
+# Copyright (c) Microsoft Corporation.
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+##
+{
+  "scope": "gcc_arm_linux",
+  "type": "web",
+  "name": "gcc_arm_linux",
+  "source": "https://releases.linaro.org/components/toolchain/binaries/7.4-2019.02/arm-linux-gnueabihf/gcc-linaro-7.4.1-2019.02-x86_64_arm-linux-gnueabihf.tar.xz",
+  "version": "7.4.1",
+  "sha256": "3C951CF1941D0FA06D64CC0D5E88612B209D8123B273FA26C16D70BD7BC6B163",
+  "compression_type": "tar",
+  "internal_path": "/gcc-linaro-7.4.1-2019.02-x86_64_arm-linux-gnueabihf/",
+  "flags": ["set_shell_var", ],
+  "var_name": "GCC5_ARM_INSTALL"
+}

BaseTools/Bin/iasl_ext_dep.yaml

@@ -0,0 +1,21 @@
+## @file
+# Download iasl executable tool from a nuget.org package
+# - package contains different binaries based on host
+# Add the folder with the tool to the path
+#
+# This is only downloaded for scope cibuild thus
+# should have no impact on the asl compiler used by any
+# given platform to build.
+#
+# Copyright (c) Microsoft Corporation.
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+##
+{
+  "id": "iasl-ci-1",
+  "scope": "cibuild",
+  "type": "nuget",
+  "name": "iasl",
+  "source": "https://api.nuget.org/v3/index.json",
+  "version": "20190215.0.0",
+  "flags": ["set_path", "host_specific"]
+}

BaseTools/Bin/nasm_ext_dep.yaml

@@ -0,0 +1,18 @@
+## @file
+# Download nasm x86 assembler executable tool from a nuget.org package
+# - package contains different binaries based on host
+# Put on the tool on the path
+#
+#
+# Copyright (c) Microsoft Corporation.
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+##
+{
+  "id": "nasm-1",
+  "scope": "edk2-build",
+  "type": "nuget",
+  "name": "mu_nasm",
+  "source": "https://api.nuget.org/v3/index.json",
+  "version": "2.14.02",
+  "flags": ["set_path", "host_specific"]
+}