feat(rest): Update Component with attachment

[tuannn2]

Please provide a summary of your changes here.

• Which issue is this pull request belonging to and how is it solving it? (Refer to issue here)
• Did you add or update any new dependencies that are required for your change?

Issue: #2062

How To Test?

• Run command line:

curl 'https://sw360.org/api/components/17653524' -i -X PATCH \
    -H 'Content-Type: application/hal+json' \
    -H 'Authorization: Bearer eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJhdWQiOlsic3czNjAtUkVTVC1BUEkiXSwidXNlcl9uYW1lIjoiYWRtaW5Ac3czNjAub3JnIiwic2NvcGUiOlsiYWxsIl0sImV4cCI6MTY5MDI1ODUyNywiYXV0aG9yaXRpZXMiOlsiUkVBRCIsIldSSVRFIl0sImp0aSI6IldFU1V6RVQ1Y09aTGVXQTA4cDVxQ3lEdUVoRSIsImNsaWVudF9pZCI6InRydXN0ZWQtc3czNjAtY2xpZW50In0.GtSuxr_Av75PD3qvqXaoF8TkSnWUrNGTHXKpUvJS6VUGodyzgU9y-GSgc-ofsZkhhsnbRm3xrB-3uK6-__qPU6ibIS6cIznRYMvsd8KXFLJR56ZRkzlBDA5f7VocEzq_3WVjNZ0uQVrfdHvoPWeFzNziG_IxhXv6go8N4Ai4PV5PbQ19t3AOpH5eW900E2AkoI0TLxhGuQ6GyQBu0Ll_2nc7I68yFJb2J2F4jjlYR0wMTKNKJorg5UG_2vUzPo0DcoKu2HaNS-4c0u9XNHuYJmBiXwnR7PWx3jxhyp_lsst4V_BjD7y5siO9LpFR41GZmbA8qv00VO6zJ_vaO6JpNQ' \
    -H 'Accept: application/hal+json' \
    -d '{
  "name" : "Updated Component",
  "attachmentDTOs" : [ {
    "attachmentContentId" : "1231231255",
    "filename" : "spring-mvc-4.3.4.RELEASE.jar"
  } ]
}'

• Expected Output

{
  "id" : "17653524",
  "name" : "Updated Component",
  "description" : "Angular is a development platform for building mobile and desktop web applications.",
  "createdOn" : "2016-12-15",
  "componentType" : "OSS",
  "subscribers" : [ "Mari" ],
  "moderators" : [ "[email protected]", "[email protected]" ],
  "componentOwner" : "John",
  "ownerAccountingUnit" : "4822",
  "ownerGroup" : "AA BB 123 GHV2-DE",
  "ownerCountry" : "DE",
  "visbility" : "EVERYONE",
  "externalIds" : {
    "component-id-key" : "1831A4",
    "ws-component-id" : "[\"123\",\"598753\"]"
  },
  "additionalData" : {
    "Key" : "Value"
  },
  "mainLicenseIds" : [ "Apache-2.0", "MIT" ],
  "defaultVendorId" : "vendorId",
  "categories" : [ "java", "javascript", "sql" ],
  "languages" : [ "EN", "DE" ],
  "softwarePlatforms" : [ "Linux" ],
  "operatingSystems" : [ "Windows", "Linux" ],
  "homepage" : "https://angular.io",
  "mailinglist" : "[email protected]",
  "wiki" : "http://wiki.ubuntu.com/",
  "blog" : "http://www.javaworld.com/",
  "modifiedOn" : "2016-12-30",
  "setBusinessUnit" : false,
  "setVisbility" : true,
  "_links" : {
    "self" : {
      "href" : "https://sw360.org/api/components/17653524"
    }
  },
  "_embedded" : {
    "createdBy" : {
      "email" : "[email protected]",
      "deactivated" : false,
      "_links" : {
        "self" : {
          "href" : "https://sw360.org/api/users/byid/123456789"
        }
      }
    },
    "sw360:moderators" : [ {
      "email" : "[email protected]",
      "deactivated" : false,
      "_links" : {
        "self" : {
          "href" : "https://sw360.org/api/users/byid/74427996"
        }
      }
    }, {
      "email" : "[email protected]",
      "deactivated" : false,
      "_links" : {
        "self" : {
          "href" : "https://sw360.org/api/users/byid/123456789"
        }
      }
    } ],
    "sw360:vendors" : [ {
      "fullName" : "Google"
    } ],
    "sw360:releases" : [ {
      "name" : "Angular 2.3.0",
      "version" : "2.3.0",
      "_links" : {
        "self" : {
          "href" : "https://sw360.org/api/releases/3765276512"
        }
      }
    }, {
      "name" : "Angular 2.3.1",
      "version" : "2.3.1",
      "_links" : {
        "self" : {
          "href" : "https://sw360.org/api/releases/3765276512"
        }
      }
    } ],
    "defaultVendor" : {
      "url" : "https://vendor.com",
      "shortName" : "vendorShortName",
      "fullName" : "vendorFullName",
      "_links" : {
        "self" : {
          "href" : "https://sw360.org/api/vendors/vendorId"
        }
      }
    },
    "sw360:attachments" : [ {
      "filename" : "spring-mvc-4.3.4.RELEASE.jar",
      "_links" : {
        "self" : {
          "href" : "https://sw360.org/api/attachments/1231231255"
        }
      }
    } ]
  }
}

[nikkuma7]

Test successful.

[eldrin30]

Code looks good :)