chore(iText7): remove iText7 extension cause AGPL (#431)

* refactor: 增加中文支持

* chore: 移除 iText 库

由于是 AGPL 协议无法使用

Author: ArgoZhang

BootstrapBlazor.Extensions.sln

@@ -83,8 +83,6 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BootstrapBlazor.Holiday", "
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BootstrapBlazor.Html2Pdf", "src\components\BootstrapBlazor.Html2Pdf\BootstrapBlazor.Html2Pdf.csproj", "{E386EBD8-0028-42B7-8473-F26014C0E326}"
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BootstrapBlazor.Html2Pdf.iText", "src\components\BootstrapBlazor.Html2Pdf.iText\BootstrapBlazor.Html2Pdf.iText.csproj", "{26452C1D-8FBB-419A-9667-01C34B7C6AC4}"
-EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BootstrapBlazor.IconPark", "src\components\BootstrapBlazor.IconPark\BootstrapBlazor.IconPark.csproj", "{8B374E31-BBC3-4765-82C7-E124C4E1E731}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BootstrapBlazor.Live2DDisplay", "src\components\BootstrapBlazor.Live2DDisplay\BootstrapBlazor.Live2DDisplay.csproj", "{496554A7-52B0-4E01-9CF3-08F0A2B2FCD8}"
@@ -346,10 +344,6 @@ Global
 		{E386EBD8-0028-42B7-8473-F26014C0E326}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{E386EBD8-0028-42B7-8473-F26014C0E326}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{E386EBD8-0028-42B7-8473-F26014C0E326}.Release|Any CPU.Build.0 = Release|Any CPU
-		{26452C1D-8FBB-419A-9667-01C34B7C6AC4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{26452C1D-8FBB-419A-9667-01C34B7C6AC4}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{26452C1D-8FBB-419A-9667-01C34B7C6AC4}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{26452C1D-8FBB-419A-9667-01C34B7C6AC4}.Release|Any CPU.Build.0 = Release|Any CPU
 		{8B374E31-BBC3-4765-82C7-E124C4E1E731}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{8B374E31-BBC3-4765-82C7-E124C4E1E731}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{8B374E31-BBC3-4765-82C7-E124C4E1E731}.Release|Any CPU.ActiveCfg = Release|Any CPU
@@ -543,7 +537,6 @@ Global
 		{BB7FBAC6-0F98-4443-B3A0-B7D0F4164D20} = {FF1089BE-C704-4374-B629-C57C08E1798F}
 		{162A2C8E-767C-41A7-9020-729E79C4F1F9} = {FF1089BE-C704-4374-B629-C57C08E1798F}
 		{E386EBD8-0028-42B7-8473-F26014C0E326} = {FF1089BE-C704-4374-B629-C57C08E1798F}
-		{26452C1D-8FBB-419A-9667-01C34B7C6AC4} = {FF1089BE-C704-4374-B629-C57C08E1798F}
 		{8B374E31-BBC3-4765-82C7-E124C4E1E731} = {FF1089BE-C704-4374-B629-C57C08E1798F}
 		{496554A7-52B0-4E01-9CF3-08F0A2B2FCD8} = {FF1089BE-C704-4374-B629-C57C08E1798F}
 		{7C875492-41A2-401D-90B1-161BCD5103DC} = {FF1089BE-C704-4374-B629-C57C08E1798F}