plugins: added nvm and sdkman (#150)

* feat(plugins): added sdkman plugin

* feat(plugins): added nvm plugin

* fix: fixed the codacy issues

plugins/sdkman/README.md

@@ -0,0 +1,25 @@
+# sdkman plugin
+
+This plugin automatically source sdkman[1]
+
+## Installation
+
+### Install sdkman
+
+Lets install[2] the sdkman without updaing shell config!
+
+```bash
+$ curl -s "https://get.sdkman.io?rcupdate=false" | bash
+```
+
+### Include sdkman as plugin
+
+```bash
+plugins=(
+  git
+  sdkman
+)
+```
+
+[1]: https://sdkman.io/
+[2]: https://sdkman.io/install

plugins/sdkman/sdkman.plugin.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+# Set NVM_DIR if it isn't already defined
+[[ -z "$SDKMAN_DIR" ]] && export NVM_DIR="$HOME/.sdkman"
+
+# Try to load sdk only if command not already available
+if ! type "sdk" &> /dev/null; then
+  [[ -s "$HOME/.sdkman/bin/sdkman-init.sh" ]] && source "$HOME/.sdkman/bin/sdkman-init.sh"
+fi