adding week1 lecture slides and code examples

LectureCodeExamples/Week1/JavaScriptIICode/Network.html

LectureCodeExamples/Week1/JavaScriptIICode/SqrTable.html

LectureCodeExamples/Week1/JavaScriptIICode/Strict.html

LectureCodeExamples/Week1/JavaScriptIICode/Wrapper.html

LectureCodeExamples/Week1/JavaScriptIICode/WrapperType.html

...reCodeExamples/Week1/JavaScriptIICode/WriteVsWriteln.html

...ureCodeExamples/Week1/JavaScriptIIICode/ArrayMethods.html

LectureCodeExamples/Week1/JavaScriptIIICode/ArraySlice.html

...odeExamples/Week1/JavaScriptIIICode/ArraysLengthProp.html

...ureCodeExamples/Week1/JavaScriptIIICode/ArraysOneDim.html

...ureCodeExamples/Week1/JavaScriptIIICode/ArraysTwoDim.html

LectureCodeExamples/Week1/JavaScriptIIICode/CharAt.html

LectureCodeExamples/Week1/JavaScriptIIICode/ErrorHandler.js

...eCodeExamples/Week1/JavaScriptIIICode/ErrorHandlerEx.html

LectureCodeExamples/Week1/JavaScriptIIICode/ForIn.html

LectureCodeExamples/Week1/JavaScriptIIICode/ForOf.html

LectureCodeExamples/Week1/JavaScriptIIICode/NaN.html

LectureCodeExamples/Week1/JavaScriptIIICode/Sorting.html

...reCodeExamples/Week1/JavaScriptIIICode/StringMethods.html

...CodeExamples/Week1/JavaScriptIIICode/TemplateLiteral.html