Change Download Location of Fabric Binaries (#143)

The current scripts download the fabric binaries and place them
in `/usr/local`. Modifying the host system in CI is generally
bad practice. The `bootstrap.sh` script also downloads the
binaries into the root of the `fabric-samples` repo. It is
good practice for us to do the same in CI. We also have
several samples that make an assumption about the location
of these scripts. In the future we should re-evaluate these
examples.

Signed-off-by: Brett Logan <brett.t.logan@ibm.com>

.gitignore

@@ -13,3 +13,4 @@
 vendor/
 .vscode
 .gradle
+.idea

ci/azure-pipelines.yml

@@ -8,6 +8,7 @@ trigger:
 
 variables:
   NODE_VER: '12.x'
+  PATH: $(Agent.BuildDirectory)/bin:/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin
 
 jobs:
   - job: fabcar_go

ci/install-fabric.yml

@@ -5,13 +5,11 @@
 steps:
   - script: |
       set -eo pipefail
-      wget -q -P /tmp https://hyperledger.jfrog.io/hyperledger/fabric-binaries/hyperledger-fabric-linux-amd64-latest.tar.gz
-      sudo tar xzvf /tmp/hyperledger-fabric-linux-amd64-latest.tar.gz -C /usr/local
+      curl -L --retry 5 --retry-delay 3 https://hyperledger.jfrog.io/hyperledger/fabric-binaries/hyperledger-fabric-linux-amd64-latest.tar.gz | tar xz
     displayName: Download Fabric CLI
   - script: |
       set -eo pipefail
-      wget -q -P /tmp https://hyperledger.jfrog.io/hyperledger/fabric-binaries/hyperledger-fabric-ca-linux-amd64-latest.tar.gz
-      sudo tar xzvf /tmp/hyperledger-fabric-ca-linux-amd64-latest.tar.gz -C /usr/local
+      curl -L --retry 5 --retry-delay 3 https://hyperledger.jfrog.io/hyperledger/fabric-binaries/hyperledger-fabric-ca-linux-amd64-latest.tar.gz | tar xz
     displayName: Download Fabric CA CLI
   - script: bash ci/getDockerImages.sh
     displayName: Pull Fabric Docker images