Introduce new, Hugo templates based, website (#713)

* Add new hugo-based website for hawkBit

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

* Fix broken links + wordings
- , i.e. -> i.e,
- , e.g. -> e.g.,
- hawkbit -> hawkBit
- don't -> do not
- isn't -> is not

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

* Remove old documentation and add maven integration

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

* Add Intellij files to ignore

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

* Update README

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

* Update Copyright header
* exclude website artifacts

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

* Harmonize usage of i.e. and e.g.

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

* Add remark for windows user

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

* Fix indention

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

* Introduce review findings

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

* Change image in 'run hawkbit' guide

Signed-off-by: Jeroen Laverman <jeroen.laverman@bosch-si.com>

docs/content/features.md

@@ -0,0 +1,63 @@
+---
+title: Features
+weight: 40
+---
+
+
+## Device and software repository
+- Repository that holds the provisioning targets and assignable software distributions.
+- That includes a full software update history for every device.
+- Support for pre-commission devices in the repository and plug and play, i.e. device is created if it is authenticated for the first time.
+
+## Update Management
+- Directly deploy a defined software distribution to a device (by Management UI or API).
+- Update handling is independent of the device type, integration approach or connectivity.
+
+## Management UI
+- Create/Read/Update/Delete operations for provisioning targets (i.e. devices) and repository content (i.e. software).
+- Manage and monitor software update operations.
+- Optimized for professional users, e.g. administrators, developers and 2nd/3rd level support staff.
+- Ease of use drag-and-drop paradigm.
+- Flexible grouping of data.
+- Flexible filters for data browsing.
+- Responsive to resolution.
+- Lazy loading of data.
+- All information on one page.
+- Optional integration with Bosch IoT Permissions service for full multi user support with fine granular permission based authorization.
+
+## Artifact Content Delivery
+- Partial downloads supported.
+- Download resume supported (RFC7233).
+- Content management by RESTful API and UI (see above).
+- Authorization based on software assignment, i.e. a device can only download what has been assigned to it in the first place.
+- Delta artifact hosting supported.
+- Artifact signature hosting supported.
+
+## Rollout/Campaign Management
+- Secure handling of large volumes of devices at rollout creation time.
+- Flexible deployment group definition as part of a rollout.
+- Monitoring of the rollout progress.
+- Emergency rollout shutdown in case of update failures.
+
+## Interfaces
+
+### Management API
+- RESTful API
+- Create/Read/Update/Delete operations for provisioning targets (i.e. devices) and repository content (i.e. software).
+- Manage and monitor software update operations.
+- Online API documentation.
+- JSON payload with Hypermedia support.
+- Supports filtering, sorting and paging.
+
+### Direct Device Integration API
+- RESTful HTTP based API for direct device integration
+    - JSON payload.
+    - Traffic optimized (content based Etag generation, not modified).
+- Feedback channel from device.
+- TLS encryption.
+
+### Device Management Federation API
+- Indirect device integration through a device management service or application into hawkBit.
+- Optimized for high service to service throughput with [AMQP](https://www.rabbitmq.com/amqp-0-9-1-reference.html) messaging interface.
+- Separate AMQP vHost per tenant for maximum security.
+