Set is_unknown flag for unknown licenses

Signed-off-by: akugarg <akanksha.garg2k@gmail.com>

Author: akugarg

src/licensedcode/data/rules/agpl-3.0_and_other-copyleft_and_unknown_1.yml

@@ -5,3 +5,4 @@ notes: contains several additions that may or may not be a problem wrt. compatib
     AGPL
 ignorable_urls:
     - http://www.gnu.org/licenses
+is_unknown: yes

src/licensedcode/data/rules/agpl-3.0_and_unknown_1.yml

@@ -4,3 +4,4 @@ relevance: 100
 notes: commercial use right are not clear
 ignorable_urls:
     - http://introjs.com/
+is_unknown: yes

src/licensedcode/data/rules/apache-2.0_and_free-unknown_1.yml

@@ -1,3 +1,4 @@
 license_expression: apache-2.0 AND free-unknown
 is_license_tag: yes
 relevance: 100
+is_unknown: yes

src/licensedcode/data/rules/apache-2.0_and_free-unknown_2.yml

@@ -5,3 +5,4 @@ referenced_filenames:
     - docs/THIRDPARTY
 ignorable_urls:
     - https://www.apache.org/licenses/LICENSE-2.0
+is_unknown: yes

src/licensedcode/data/rules/apache-2.0_and_free-unknown_zulip.yml

@@ -5,3 +5,4 @@ referenced_filenames:
     - docs/THIRDPARTY
 ignorable_urls:
     - http://www.apache.org/licenses/LICENSE-2.0
+is_unknown: yes

src/licensedcode/data/rules/apache-2.0_or_free-unknown_1.yml

@@ -1,3 +1,4 @@
 license_expression: apache-2.0 OR free-unknown
 is_license_notice: yes
 relevance: 100
+is_unknown: yes

src/licensedcode/data/rules/apache-2.0_or_free-unknown_2.yml

@@ -1,3 +1,4 @@
 license_expression: apache-2.0 OR free-unknown
 is_license_notice: yes
 relevance: 100
+is_unknown: yes

src/licensedcode/data/rules/bsd-simplified_and_bsd-new_and_unknown-license-reference_nuget_url_1.yml

@@ -3,3 +3,4 @@ is_license_reference: yes
 relevance: 90
 ignorable_urls:
     - https://raw.github.com/editorconfig/editorconfig-core/master/LICENSE
+is_unknown: yes

src/licensedcode/data/rules/bsd-simplified_and_unknown_1.yml

@@ -2,3 +2,4 @@ license_expression: bsd-simplified AND unknown
 is_license_notice: yes
 relevance: 90
 notes: Seen in https://git.icod.de/dalu/i18n
+is_unknown: yes

src/licensedcode/data/rules/bsd-simplified_or_unknown-license-reference_and_odbl-1.0_1.yml

@@ -5,3 +5,4 @@ referenced_filenames:
     - LEGAL
 ignorable_urls:
     - http://opendatacommons.org/licenses/odbl/
+is_unknown: yes