Modify SBOM to match newest requirement definition and update all external components

Several issues have been identified in generated SBOM files. These should be adjusted accordingly:

• Add a "cpe" attribute to the pedigree component in the sbom.file. The Common Platform Enumeration (CPE) allows to uniquely identify the used lwip software in automated tools. I think for current version the correct cpe value would be "cpe:2.3:a:lwip_project:lwip:2.1.2:*:*:*:*:*:*:*".
• update waf to V1.14.0.3
• update all external components to newest available versions addressing SBOM requirements
• rename project's own sbom template file from "sbom.json" to "cdx.json"
• add schema reference to the top of the file:

  "$schema": "https://cyclonedx.org/schema/bom-1.6.schema.json",

• correct entry metadata.component.references to metadata.component.externalReferences
• add copyright statement to project's own sbom template (metadata.component)
  metadata.component.copyright:

  "copyright" : "Copyright (c) Hilscher Gesellschaft fuer Systemautomation mbH",

• add manufacturer statement to project's own sbom template (metadata.component)
• metadata.component.manufacturer.name & metadata.component.manufacturer.url

•       "manufacturer": {
          "name": "Hilscher Gesellschaft fuer Systemautomation mbH",
          "url": [
            "https://www.hilscher.com"
          ]
        }

• If not yet present, add name to project's own sbom template (metadata.component)
  metadata.component.name:

  "name" : "Name of JIRA Project",

•