CLDR-17987 Add supplemental data for coptic

Command to rebuild supplementalData:  mvn package -DskipTests=true &&  java -jar tools/cldr-code/target/cldr-code.jar ConvertLanguageData &&  java -jar tools/cldr-code/target/cldr-code.jar GenerateLikelySubtags

common/supplemental/attributeValueValidity.xml

@@ -66,7 +66,7 @@
 			<variable id='$languageNonTcLtBasic' type='choice'>
 				 aa ab agq ak an ann apc arn asa
 				 ba bal bas bem bew bez bgn blt bm bo bss byn
-				 cad cch ccp ce cgg cho cic ckb co cu
+				 cad cch ccp ce cgg cho cic ckb co cop cu
 				 dav dje dua dv dyo dz
 				 ebu ee ewo
 				 ff frr fur

common/supplemental/supplementalData.xml

@@ -1471,7 +1471,7 @@ XXX Code for transations where no currency is involved
 		<language type="ckt" scripts="Cyrl"/>
 		<language type="clc" scripts="Latn"/>
 		<language type="co" scripts="Latn"/>
-		<language type="cop" scripts="Arab Copt Grek" alt="secondary"/>
+		<language type="cop" scripts="Arab Copt Grek" territories="EG" alt="secondary"/>
 		<language type="cps" scripts="Latn"/>
 		<language type="cr" scripts="Cans Latn"/>
 		<language type="cr" territories="CA" alt="secondary"/>
@@ -2946,6 +2946,7 @@ XXX Code for transations where no currency is involved
 			<languagePopulation type="ar" populationPercent="94" officialStatus="official"/>	<!--Arabic-->
 			<languagePopulation type="arz" populationPercent="64"/>	<!--Egyptian Arabic-->
 			<languagePopulation type="en" populationPercent="35"/>	<!--English-->
+			<languagePopulation type="cop" populationPercent="6" references="R1337"/>	<!--Coptic-->
 			<languagePopulation type="el" populationPercent="0.061"/>	<!--Greek-->
 		</territory>
 		<territory type="EH" gdp="906500000" literacyPercent="50" population="652271">	<!--Western Sahara-->
@@ -5818,5 +5819,6 @@ XXX Code for transations where no currency is involved
 		<reference type="R1334" uri="https://en.wikipedia.org/wiki/Laz_people#cite_note-ethnologue-1">[missing]</reference>
 		<reference type="R1335" uri="https://en.wikipedia.org/wiki/Greeks_in_Russia_and_Ukraine#cite_ref-15">Greek population in Russia -- most ancestrally used Pontic Greek -- modern usage almost certainly has dropped off but we don't have clear statistics on current usage.</reference>
 		<reference type="R1336" uri="https://joshuaproject.net/people_groups/14444/TU">[missing]</reference>
+		<reference type="R1337" uri="https://www.wsj.com/articles/BL-263B-3637">Lower estimate of Coptic population, actual language literacy unknown </reference>
 	</references>
 </supplementalData>

common/supplemental/supplementalMetadata.xml

@@ -1880,7 +1880,7 @@ For terms of use, see http://www.unicode.org/copyright.html
 			bgc_IN bgn_PK bho_IN blo_BJ blt_VN bm_ML bm_Nkoo_ML bn_BD bo_CN br_FR brx_IN
 			bs_Cyrl_BA bs_Latn bs_Latn_BA bss_CM byn_ER
 			ca_ES cad_US cch_NG ccp_BD ce_RU ceb_PH cgg_UG cho_US chr_US cic_US ckb_IQ
-			co_FR cs_CZ csw_CA cu_RU cv_RU cy_GB
+			co_FR cop_EG cs_CZ csw_CA cu_RU cv_RU cy_GB
 			da_DK dav_KE de_DE dje_NE doi_IN dsb_DE dua_CM dv_MV dyo_SN dz_BT
 			ebu_KE ee_GH el_GR en_Dsrt_US en_Shaw_GB en_US eo_001 es_ES et_EE eu_ES ewo_CM
 			fa_IR ff_Adlm_GN ff_Latn ff_Latn_SN fi_FI fil_PH fo_FO fr_FR frr_DE fur_IT

tools/cldr-code/src/main/resources/org/unicode/cldr/util/data/country_language_population.tsv

@@ -347,6 +347,7 @@ Ecuador	EC	"16,498,502"	92%	"193,000,000,000"	official	Spanish	es	96%			"percent
 Egypt	EG	"99,413,317"	74%	"1,204,000,000,000"	official	Arabic	ar	94%
 Egypt	EG	"99,413,317"	74%	"1,204,000,000,000"		Egyptian Arabic	arz	64%
 Egypt	EG	"99,413,317"	74%	"1,204,000,000,000"		English	en	35%
+Egypt	EG	"99,413,317"	74%	"1,204,000,000,000"		Coptic	cop	6%			https://www.wsj.com/articles/BL-263B-3637 Lower estimate of Coptic population, actual language literacy unknown 
 Egypt	EG	"99,413,317"	74%	"1,204,000,000,000"		Greek	el	"60,900"
 El Salvador	SV	"6,187,271"	85%	"51,170,000,000"	official	Spanish	es	89%
 Equatorial Guinea	GQ	"797,457"	94%	"31,520,000,000"		Bube	bvb	7.9%