Added license

LICENSE

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+copyright (c) 2019 by Project Camp, The Web Fosters
+Project Camp * http://www.thewebfosters.com
+
+All Rights Reserved
+ATTRIBUTION ASSURANCE LICENSE (adapted from the original BSD license)
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the conditions below are met.
+These conditions require a modest attribution to InvoiceNinja.com (the
+"Author"), who hopes that its promotional value may help justify the
+thousands of dollars in otherwise billable time invested in writing
+this and other freely available, open-source software.
+
+1. Redistributions of source code, in whole or part and with or without
+modification (the "Code"), must prominently display this GPG-signed
+text in verifiable form.
+2. Redistributions of the Code in binary form must be accompanied by
+this GPG-signed text in any documentation and, each time the resulting
+executable program or a program dependent thereon is launched, a
+prominent display (e.g., splash screen or banner text) of the Author's
+attribution information, which includes:
+(a) Name ("The Web Fosters"),
+(b) Professional identification ("Project Camp"), and
+(c) URL ("http://www.thewebfosters.com").
+3. Neither the name nor any trademark of the Author may be used to
+endorse or promote products derived from this software without specific
+prior written permission.
+4. Users are entirely responsible, to the exclusion of the Author and
+any other persons, for compliance with (1) regulations set by owners or
+administrators of employed equipment, (2) licensing terms of any other
+software, and (3) local regulations regarding use, including those
+regarding import, export, and use of encryption software.
+
+THIS FREE SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+EVENT SHALL THE AUTHOR OR ANY CONTRIBUTOR BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+EFFECTS OF UNAUTHORIZED OR MALICIOUS NETWORK ACCESS;
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.