[skip ci] Updated licenses and gitignores

options/license/CC-PDM-1.0

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+No Copyright
+
+This work has been identified as being free of known restrictions under
+copyright law, including all related and neighboring rights.
+
+
+You can copy, modify, distribute and perform the work, even for commercial
+purposes, all without asking permission. See Other Information below.
+
+Other Information
+
+The work may not be free of known copyright restrictions in all jurisdictions .
+
+Persons may have other rights in or related to the work, such as patent or
+trademark rights, and others may have rights in how the work is used, such as
+publicity or privacy rights.
+
+In some jurisdictions moral rights of the author may persist beyond the term of
+copyright. These rights may include the right to be identified as the author
+and the right to object to derogatory treatments.
+
+Unless expressly stated otherwise, the person who identified the work makes no
+warranties about the work, and disclaims liability for all uses of the work, to
+the fullest extent permitted by applicable law.
+
+When using or citing the work, you should not imply endorsement by the author
+or the person who identified the work.